2MASS All-Sky Data Release Extended Source Catalog Format

The version used by WCSTools includes a very small subset of these parameters in the following order:

ra	right ascension in degrees
dec	declination in degrees
designation	Jhhmmssss+ddmmsss
j_m_k20fe	J magnitude
h_m_k20fe	H magnitude
k_m_k20fe	K magnitude
r_k20fe	semi-major axis in arcseconds

from the User's Guide to the 2MASS All-Sky Data Release, section 2_3a. Extended Source Catalog Column Descriptions

The following table contains brief descriptions of the parameters provided for each source in the 2MASS All Sky Release XSC. The table is organized according to the broad function and utility of the parameters: positional information, photometric information, and source quality information. For XSC flag parameters, the meaning of each possible flag value is given, along with some practical information on their usage.

The XSC contains 389 columns of information per source (most of which is photometry.) Because extended sources are much more complicated than a point source, it takes many more parameters to characterize them. Some parameters are required to describe the spatial extent of a source, and many more are required to characterize the photometry. In addition to a number of standard measures of photometry, the xsc also reports the magnitude as measured in a number of different fixed-size apertures. The columns are described in the tables below. We have separated the columns according to their basic function and utility.

Photometry algorithms and performance, "Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags," is discussed here. The XSC FAQ and Primer, "How to Use the 2MASS XSC -- FAQ Sheet," is here.

Name/Position Info

Standard Photometry & Orientation

Large Aperture Photometry

Miscellaneous Photometry and Characterization

A. Name and Position Information

column	Parameter Name	View	Format	Units	Description
1	jdate	L	13.4f	day	Julian date of the source measurement accurate to ±3 minutes. This value is the mean Julian date of the scan observation in which this source falls. For a more precise value of Julian date for this source, see the jdate entry in the PSC using the pts_key index as a cross-reference.
---	Position Information
2	designation	S	17s	-	Source designation formed from sexigesimal coordinates. This is the object sequence designation, or object "name" as specified by the IAU recommendations on source nomenclature. It is derived from the J2000 sexigesimal coordinates of the source and has the form HHMMSSSS+/-DDMMSSS, where HH are the hours of right ascension, MM the RA minutes and SSS are the deci-seconds of RA. DD are the degrees in declination, MM are DEC minutes and SS the declination seconds. Note that both the RA deci-seconds of time and DEC seconds of arc are truncated rather than rounded, per the IAU recommendation. The full naming convention for 2MASS All-Sky Release sources has the form "2MASX Jhhmmssss+ddmmsss[ABC...]", where "2MASX" indicates that the source is from the All-Sky XSC, "J" indicates the position is J2000, and the optional trailing letters are used to distinguish sources with otherwise duplicate names. The "2MASX J" prefix is not listed explicitly in the designation column.
3	ra	S	10.6f	deg	Right ascension (J2000 decimal deg) based on peak pixel.
4	dec	S	10.6f	deg	Declination (J2000 decimal deg) based on peak pixel.
5	sup_ra	L	10.6f	deg	Super-coadd centroid RA (J2000 decimal deg).
6	sup_dec	L	10.6f	deg	Super-coadd centroid Dec (J2000 decimal deg).
7	glon	L	7.3f	deg	Galactic longitude (decimal deg) based on peak pixel. Galactic coordinate for 2MASS source derived by precessing reconstructed ra and dec to B1950, and performing rotational transformation into lII, bII coordinate system. This coordinate should not be used as an astrometric reference because it has been rounded to 0.001 deg.
8	glat	L	7.3f	deg	Galactic latitude (decimal deg) based on peak pixel. Galactic coordinate for 2MASS source derived by precessing reconstructed ra and dec to B1950, and performing rotational transformation into lII, bII coordinate system. This coordinate should not be used as an astrometric reference because it has been rounded to 0.001 deg.
9	density	L	5.2f	-	Coadd log(density) of stars with k<14 mag. See Stellar Number Density Metric: "density".

B. Standard (recommended) Photometry: Isophotal Apertures Based on the Ks 20 mag/arcsec^2 Elliptical Isophote, and 2-D Orientation

column	Parameter Name	View	Format	Units	Description
---	Isophotal photom at 20 using K fiducial ellip ap
10	r_k20fe	S	6.1f	arcsec	20mag/sq." isophotal K fiducial ell. ap. semi-major axis. "Fiducial" apertures are determined for each type of total and isophotal photometry measurements as described in the GALWORKS SDS. Essentially, they are used to make mag measurements for each type of photometry with the same aperture size in all three bands. The fiducial band for the total Kron photometry and 20mag/sq." isophotal photometry is the K band, and for the 21mag/sq." isophotal photometry it is the J band. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
11	j_m_k20fe	S	6.3f	mag	J 20mag/sq." isophotal fiducial ell. ap. magnitude. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
12	j_msig_k20fe	S	5.3f	mag	J 1-sigma uncertainty in 20mag/sq." iso.fid.ell.mag.
13	j_flg_k20fe	S	1hd	-	J confusion flag for 20mag/sq." iso. fid. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
14	h_m_k20fe	S	6.3f	mag	H 20mag/sq." isophotal fiducial ell. ap. magnitude. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
15	h_msig_k20fe	S	5.3f	mag	H 1-sigma uncertainty in 20mag/sq." iso.fid.ell.mag.
16	h_flg_k20fe	S	1hd	-	H confusion flag for 20mag/sq." iso. fid. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
17	k_m_k20fe	S	6.3f	mag	K 20mag/sq." isophotal fiducial ell. ap. magnitude. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
18	k_msig_k20fe	S	5.3f	mag	K 1-sigma uncertainty in 20mag/sq." iso.fid.ell.mag.
19	k_flg_k20fe	S	1hd	-	K confusion flag for 20mag/sq." iso. fid. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Elliptical Isophotal Orientation
20	r_3sig	L	5.1f	arcsec	3-sigma K isophotal semi-major axis.
21	j_ba	L	5.3f	-	J minor/major axis ratio fit to the 3-sigma isophote.
22	j_phi	L	3hd	deg	J angle to 3-sigma major axis (E of N).
23	h_ba	L	5.3f	-	H minor/major axis ratio fit to the 3-sigma isophote.
24	h_phi	L	3hd	deg	H angle to 3-sigma major axis (E of N).
25	k_ba	S	5.3f	-	K minor/major axis ratio fit to the 3-sigma isophote.
26	k_phi	S	3hd	deg	K angle to 3-sigma major axis (E of N).
27	sup_r_3sig	L	5.1f	arcsec	Super-coadd 3-sigma isophotal semi-major axis radius.
28	sup_ba	S	5.3f	-	Minor/major axis ratio fit to 3-sig. super-coadd isophote.
29	sup_phi	S	3hd	deg	Super-coadd angle to major axis (E of N).

C. Large Apertures, including Kron and Total Versions, and Surface Brightness

column	Parameter Name	View	Format	Units	Description
---	Photometry using Kron elliptical aperture
30	r_fe	L	6.1f	arcsec	K fiducial Kron elliptical aperture semi-major axis. "Fiducial" apertures are determined for each type of total and isophotal photometry measurements as described in the GALWORKS SDS. Essentially, they are used to make mag measurements for each type of photometry with the same aperture size in all three bands. The fiducial band for the total Kron photometry and 20mag/sq." isophotal photometry is the K band, and for the 21mag/sq." isophotal photometry it is the J band. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
31	j_m_fe	L	6.3f	mag	J fiducial Kron elliptical aperture magnitude. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
32	j_msig_fe	L	5.3f	mag	J 1-sigma uncertainty in fiducial Kron ell. mag.
33	j_flg_fe	L	1hd	-	J confusion flag for fiducial Kron ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
34	h_m_fe	L	6.3f	mag	H fiducial Kron elliptical aperture magnitude. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
35	h_msig_fe	L	5.3f	mag	H 1-sigma uncertainty in fiducial Kron ell. mag.
36	h_flg_fe	L	1hd	-	H confusion flag for fiducial Kron ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
37	k_m_fe	L	6.3f	mag	K fiducial Kron ell. mag aperture magnitude. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
38	k_msig_fe	L	5.3f	mag	K 1-sigma uncertainty in fiducial Kron ell. mag.
39	k_flg_fe	L	1hd	-	K confusion flag for fiducial Kron ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Total Photometry from extrapolation of fit to radial profile
40	r_ext	S	7.2f	arcsec	extrapolation/total radius. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
41	j_m_ext	S	6.3f	mag	J mag from fit extrapolation. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
42	j_msig_ext	L	5.3f	mag	J 1-sigma uncertainty in mag from fit extrapolation.
43	j_pchi	S	6.3f	-	J chi^2 of fit to rad. profile (LCSB: alpha scale len). If the source is not an LCSB, these fields contain the reduced chi-squared values for each band of the modified exponential fits to the elliptical radial profiles, used for extrapolation and half-light estimates. For LCSBs, they contain the alpha scale lengths.
44	h_m_ext	S	6.3f	mag	H mag from fit extrapolation. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
45	h_msig_ext	S	5.3f	mag	H 1-sigma uncertainty in mag from fit extrapolation.
46	h_pchi	L	6.3f	-	H chi^2 of fit to rad. profile (LCSB: alpha scale len). If the source is not an LCSB, these fields contain the reduced chi-squared values for each band of the modified exponential fits to the elliptical radial profiles, used for extrapolation and half-light estimates. For LCSBs, they contain the alpha scale lengths.
47	k_m_ext	S	6.3f	mag	K mag from fit extrapolation. See Large Aperture Photometry: Profile Fitting, Isophotal & Total Mags.
48	k_msig_ext	S	5.3f	mag	K 1-sigma uncertainty in mag from fit extrapolation.
49	k_pchi	L	6.3f	-	K chi^2 of fit to rad. profile (LCSB: alpha scale len). If the source is not an LCSB, these fields contain the reduced chi-squared values for each band of the modified exponential fits to the elliptical radial profiles, used for extrapolation and half-light estimates. For LCSBs, they contain the alpha scale lengths.
---	Effective radii and mean surface brightness
50	j_r_eff	L	6.2f	arcsec	J half-light (integrated half-flux point) radius. See Half-Light "Effective" Aperture & Concentration Index Beware the circularizing effect of the PSF on small galaxies. See The 2MASS Beam.
51	j_mnsurfb_eff	L	5.2f	mag	J mean surface brightness at the half-light radius. See Half-Light "Effective" Aperture & Concentration Index Beware the circularizing effect of the PSF on small galaxies. See The 2MASS Beam.
52	h_r_eff	L	6.2f	arcsec	H half-light (integrated half-flux point) radius. See Half-Light "Effective" Aperture & Concentration Index Beware the circularizing effect of the PSF on small galaxies. See The 2MASS Beam.
53	h_mnsurfb_eff	L	5.2f	mag	H mean surface brightness at the half-light radius. See Half-Light "Effective" Aperture & Concentration Index Beware the circularizing effect of the PSF on small galaxies. See The 2MASS Beam.
54	k_r_eff	L	6.2f	arcsec	K half-light (integrated half-flux point) radius. See Half-Light "Effective" Aperture & Concentration Index Beware the circularizing effect of the PSF on small galaxies. See The 2MASS Beam.
55	k_mnsurfb_eff	L	5.2f	mag	K mean surface brightness at the half-light radius. See Half-Light "Effective" Aperture & Concentration Index Beware the circularizing effect of the PSF on small galaxies. See The 2MASS Beam.
56	j_con_indx	L	5.2f	-	J concentration index r_75%/r_25%. The concentration index for the galaxy in each band is the ratio of the radii which contain 75% and 25% of the total light, r_75%/r_25%. See Half-Light "Effective" Aperture & Concentration Index Beware the circularizing effect of the PSF on small galaxies. See The 2MASS Beam.
57	h_con_indx	L	5.2f	-	H concentration index r_75%/r_25%. The concentration index for the galaxy in each band is the ratio of the radii which contain 75% and 25% of the total light, r_75%/r_25%. See Half-Light "Effective" Aperture & Concentration Index Beware the circularizing effect of the PSF on small galaxies. See The 2MASS Beam.
58	k_con_indx	L	5.2f	-	K concentration index r_75%/r_25%. The concentration index for the galaxy in each band is the ratio of the radii which contain 75% and 25% of the total light, r_75%/r_25%. See Half-Light "Effective" Aperture & Concentration Index Beware the circularizing effect of the PSF on small galaxies. See The 2MASS Beam.
59	j_peak	L	6.2f	mag	J peak pixel brightness.
60	h_peak	L	6.2f	mag	H peak pixel brightness.
61	k_peak	L	6.2f	mag	K peak pixel brightness.
62	j_5surf	L	6.2f	mag	J central surface brightness (r<=5).
63	h_5surf	L	6.2f	mag	H central surface brightness (r<=5).
64	k_5surf	L	6.2f	mag	K central surface brightness (r<=5).

D. Miscellaneous Photometry and Characterization Measures

column	Parameter Name	View	Format	Units	Description
---	Star-Galaxy Discrimination Scores
65	e_score	L	5.2f	-	extended score: 1(extended) < e_score < 2(point-like). See the FAQ: Star-Galaxy Separation: How do the E and G-scores work?
66	g_score	L	5.2f	-	galaxy score: 1(extended) < g_score < 2(point-like). See the FAQ: Star-Galaxy Separation: How do the E and G-scores work?
67	vc	L	2hd	-	visual verification score for source. The visual classification score gives the source type for those sources examined "by eye": -2 = unknown -1 = no verification (i.e., not examined) 1 = galaxy 2 = non-extended (e.g., star, double, triple, artifact) See Visual Inspection of Extended Sources
68	cc_flg	S	1s	-	indicates artifact contamination and/or confusion. The contamination/confusion flag indicates whether the source's photometry and position may be affected by artifacts of, or confusion with, nearby bright stars. The flag consists of a single character string. Sources are tested for contamination and/or confusion in the order given below, and once a flag is applied to the source, testing is stopped in that band. The flag values indicate the source may be: U: unreliable source; probable image artifact detection C: affected by confusion with or artifact of a nearby bright star A or a: known artifacts z: in close promity to a large galaxy; these sources are usually junk Z: Derived from the Large Galaxy Atlas 0: default value -- not contaminated See Extended Source Confusion Flag
---	Postage-stamp image parameter
69	im_nx	L	4hd	-	size of postage stamp image in pixels. To access the XSC postage stamp images (both jpeg and FITS versions), click 2MASS All-Sky XSC Full-Resolution Image Server
---	Isophotal photom at 20 using K fiducial circ ap
70	r_k20fc	L	5.1f	arcsec	20mag/sq." isophotal K fiducial circular ap. radius. "Fiducial" apertures are determined for each type of total and isophotal photometry measurements as described in the GALWORKS SDS. Essentially, they are used to make mag measurements for each type of photometry with the same aperture size in all three bands. The fiducial band for the total Kron photometry and 20mag/sq." isophotal photometry is the K band, and for the 21mag/sq." isophotal photometry it is the J band. Cautionary note: A negative value in this column indicates that the source measurement was corrupted, usually due to confusion from a nearby source, and the derived radius is not meaningful.
71	j_m_k20fc	L	6.3f	mag	J 20mag/sq." isophotal fiducial circ. ap. mag.
72	j_msig_k20fc	L	5.3f	mag	J 1-sigma uncertainty in 20mag/sq." iso.fid.circ. mag.
73	j_flg_k20fc	L	1hd	-	J confusion flag for 20mag/sq." iso. fid. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
74	h_m_k20fc	L	6.3f	mag	H 20mag/sq." isophotal fiducial circ. ap. mag.
75	h_msig_k20fc	L	5.3f	mag	H 1-sigma uncertainty in 20mag/sq." iso.fid.circ. mag.
76	h_flg_k20fc	L	1hd	-	H confusion flag for 20mag/sq." iso. fid. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
77	k_m_k20fc	L	6.3f	mag	K 20mag/sq." isophotal fiducial circ. ap. mag.
78	k_msig_k20fc	L	5.3f	mag	K 1-sigma uncertainty in 20mag/sq." iso.fid.circ. mag.
79	k_flg_k20fc	L	1hd	-	K confusion flag for 20mag/sq." iso. fid. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Kron elliptical photometry
80	j_r_e	L	5.1f	arcsec	J Kron elliptical aperture semi-major axis.
81	j_m_e	L	6.3f	mag	J Kron elliptical aperture magnitude.
82	j_msig_e	L	5.3f	mag	J 1-sigma uncertainty in Kron elliptical mag.
83	j_flg_e	L	1hd	-	J confusion flag for Kron elliptical mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
84	h_r_e	L	5.1f	arcsec	H Kron elliptical aperture semi-major axis.
85	h_m_e	L	6.3f	mag	H Kron elliptical aperture magnitude.
86	h_msig_e	L	5.3f	mag	H 1-sigma uncertainty in Kron elliptical mag.
87	h_flg_e	L	1hd	-	H confusion flag for Kron elliptical mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
88	k_r_e	L	5.1f	arcsec	K Kron elliptical aperture semi-major axis.
89	k_m_e	L	6.3f	mag	K Kron elliptical aperture magnitude.
90	k_msig_e	L	5.3f	mag	K 1-sigma uncertainty in Kron elliptical mag.
91	k_flg_e	L	1hd	-	K confusion flag for Kron elliptical mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Kron circular photometry
92	j_r_c	L	5.1f	arcsec	J Kron circular aperture radius.
93	j_m_c	L	6.3f	mag	J Kron circular aperture magnitude.
94	j_msig_c	L	5.3f	mag	J 1-sigma uncertainty in Kron circular mag.
95	j_flg_c	L	1hd	-	J confusion flag for Kron circular mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
96	h_r_c	L	5.1f	arcsec	H Kron circular aperture radius.
97	h_m_c	L	6.3f	mag	H Kron circular aperture magnitude.
98	h_msig_c	L	5.3f	mag	H 1-sigma uncertainty in Kron circular mag.
99	h_flg_c	L	1hd	-	H confusion flag for Kron circular mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
100	k_r_c	L	5.1f	arcsec	K Kron circular aperture radius.
101	k_m_c	L	6.3f	mag	K Kron circular aperture magnitude.
102	k_msig_c	L	5.3f	mag	K 1-sigma uncertainty in Kron circular mag.
103	k_flg_c	L	1hd	-	K confusion flag for Kron circular mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Kron photometry using K fiducial circular aperture
104	r_fc	L	5.1f	arcsec	K fiducial Kron circular aperture radius. "Fiducial" apertures are determined for each type of total and isophotal photometry measurements as described in the GALWORKS SDS. Essentially, they are used to make mag measurements for each type of photometry with the same aperture size in all three bands. The fiducial band for the total Kron photometry and 20mag/sq." isophotal photometry is the K band, and for the 21mag/sq." isophotal photometry it is the J band.
105	j_m_fc	L	6.3f	mag	J fiducial Kron circular magnitude.
106	j_msig_fc	L	5.3f	mag	J 1-sigma uncertainty in fiducial Kron circ. mag.
107	j_flg_fc	L	1hd	-	J confusion flag for fiducial Kron circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
108	h_m_fc	L	6.3f	mag	H fiducial Kron circular magnitude.
109	h_msig_fc	L	5.3f	mag	H 1-sigma uncertainty in fiducial Kron circ. mag.
110	h_flg_fc	L	1hd	-	H confusion flag for fiducial Kron circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
111	k_m_fc	L	6.3f	mag	K fiducial Kron circular magnitude.
112	k_msig_fc	L	5.3f	mag	K 1-sigma uncertainty in fiducial Kron circ. mag.
113	k_flg_fc	L	1hd	-	K confusion flag for fiducial Kron circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Isophotal photom at 20 mag/sq.arcsec using ell ap
114	j_r_i20e	L	5.1f	arcsec	J 20mag/sq." isophotal elliptical ap. semi-major axis.
115	j_m_i20e	L	6.3f	mag	J 20mag/sq." isophotal elliptical ap. magnitude.
116	j_msig_i20e	L	5.3f	mag	J 1-sigma uncertainty in 20mag/sq." iso. ell. mag.
117	j_flg_i20e	L	1hd	-	J confusion flag for 20mag/sq." iso. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
118	h_r_i20e	L	5.1f	arcsec	H 20mag/sq." isophotal elliptical ap. semi-major axis.
119	h_m_i20e	L	6.3f	mag	H 20mag/sq." isophotal elliptical ap. magnitude.
120	h_msig_i20e	L	5.3f	mag	H 1-sigma uncertainty in 20mag/sq." iso. ell. mag.
121	h_flg_i20e	L	1hd	-	H confusion flag for 20mag/sq." iso. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
122	k_r_i20e	L	5.1f	arcsec	K 20mag/sq." isophotal elliptical ap. semi-major axis.
123	k_m_i20e	L	6.3f	mag	K 20mag/sq." isophotal elliptical ap. magnitude.
124	k_msig_i20e	L	5.3f	mag	K 1-sigma uncertainty in 20mag/sq." iso. ell. mag.
125	k_flg_i20e	L	1hd	-	K confusion flag for 20mag/sq." iso. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Isophotal photom at 20 mag/sq.arcsec using circ ap
126	j_r_i20c	L	5.1f	arcsec	J 20mag/sq." isophotal circular aperture radius.
127	j_m_i20c	L	6.3f	mag	J 20mag/sq." isophotal circular ap. magnitude.
128	j_msig_i20c	L	5.3f	mag	J 1-sigma uncertainty in 20mag/sq." iso. circ. mag.
129	j_flg_i20c	L	1hd	-	J confusion flag for 20mag/sq." iso. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
130	h_r_i20c	L	5.1f	arcsec	H 20mag/sq." isophotal circular aperture radius.
131	h_m_i20c	L	6.3f	mag	H 20mag/sq." isophotal circular ap. magnitude.
132	h_msig_i20c	L	5.3f	mag	H 1-sigma uncertainty in 20mag/sq." iso. circ. mag.
133	h_flg_i20c	L	1hd	-	H confusion flag for 20mag/sq." iso. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
134	k_r_i20c	L	5.1f	arcsec	K 20mag/sq." isophotal circular aperture radius.
135	k_m_i20c	L	6.3f	mag	K 20mag/sq." isophotal circular ap. magnitude.
136	k_msig_i20c	L	5.3f	mag	K 1-sigma uncertainty in 20mag/sq." iso. circ. mag.
137	k_flg_i20c	L	1hd	-	K confusion flag for 20mag/sq." iso. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Isophotal photom at 21 mag/sq.arcsec using ell ap
138	j_r_i21e	L	5.1f	arcsec	J 21mag/sq." isophotal elliptical ap. semi-major axis.
139	j_m_i21e	L	6.3f	mag	J 21mag/sq." isophotal elliptical ap. magnitude.
140	j_msig_i21e	L	5.3f	mag	J 1-sigma uncertainty in 21mag/sq." iso. ell. mag.
141	j_flg_i21e	L	1hd	-	J confusion flag for 21mag/sq." iso. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
142	h_r_i21e	L	5.1f	arcsec	H 21mag/sq." isophotal elliptical ap. semi-major axis.
143	h_m_i21e	L	6.3f	mag	H 21mag/sq." isophotal elliptical ap. magnitude.
144	h_msig_i21e	L	5.3f	mag	H 1-sigma uncertainty in 21mag/sq." iso. ell. mag.
145	h_flg_i21e	L	1hd	-	H confusion flag for 21mag/sq." iso. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
146	k_r_i21e	L	5.1f	arcsec	K 21mag/sq." isophotal elliptical ap. semi-major axis.
147	k_m_i21e	L	6.3f	mag	K 21mag/sq." isophotal elliptical ap. magnitude.
148	k_msig_i21e	L	5.3f	mag	K 1-sigma uncertainty in 21mag/sq." iso. ell. mag.
149	k_flg_i21e	L	1hd	-	K confusion flag for 21mag/sq." iso. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Isophotal photom at 21 using J fiducial ellip ap
150	r_j21fe	L	5.1f	arcsec	21mag/sq." isophotal J fiducial ell. ap. semi-major axis. "Fiducial" apertures are determined for each type of total and isophotal photometry measurements as described in the GALWORKS SDS. Essentially, they are used to make mag measurements for each type of photometry with the same aperture size in all three bands. The fiducial band for the total Kron photometry and 20mag/sq." isophotal photometry is the K band, and for the 21mag/sq." isophotal photometry it is the J band.
151	j_m_j21fe	L	6.3f	mag	J 21mag/sq." isophotal fiducial ell. ap. magnitude.
152	j_msig_j21fe	L	5.3f	mag	J 1-sigma uncertainty in 21mag/sq." iso.fid.ell.mag.
153	j_flg_j21fe	L	1hd	-	J confusion flag for 21mag/sq." iso. fid. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
154	h_m_j21fe	L	6.3f	mag	H 21mag/sq." isophotal fiducial ell. ap. magnitude.
155	h_msig_j21fe	L	5.3f	mag	H 1-sigma uncertainty in 21mag/sq." iso.fid.ell.mag.
156	h_flg_j21fe	L	1hd	-	H confusion flag for 21mag/sq." iso. fid. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
157	k_m_j21fe	L	6.3f	mag	K 21mag/sq." isophotal fiducial ell. ap. magnitude.
158	k_msig_j21fe	L	5.3f	mag	K 1-sigma uncertainty in 21mag/sq." iso.fid.ell.mag.
159	k_flg_j21fe	L	1hd	-	K confusion flag for 21mag/sq." iso. fid. ell. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Isophotal photom at 21 using circ ap
160	j_r_i21c	L	5.1f	arcsec	J 21mag/sq." isophotal circular aperture radius.
161	j_m_i21c	L	6.3f	mag	J 21mag/sq." isophotal circular ap. magnitude.
162	j_msig_i21c	L	5.3f	mag	J 1-sigma uncertainty in 21mag/sq." iso. circ. mag.
163	j_flg_i21c	L	1hd	-	J confusion flag for 21mag/sq." iso. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
164	h_r_i21c	L	5.1f	arcsec	H 21mag/sq." isophotal circular aperture radius.
165	h_m_i21c	L	6.3f	mag	H 21mag/sq." isophotal circular ap. magnitude.
166	h_msig_i21c	L	5.3f	mag	H 1-sigma uncertainty in 21mag/sq." iso. circ. mag.
167	h_flg_i21c	L	1hd	-	H confusion flag for 21mag/sq." iso. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
168	k_r_i21c	L	5.1f	arcsec	K 21mag/sq." isophotal circular aperture radius.
169	k_m_i21c	L	6.3f	mag	K 21mag/sq." isophotal circular ap. magnitude.
170	k_msig_i21c	L	5.3f	mag	K 1-sigma uncertainty in 21mag/sq." iso. circ. mag.
171	k_flg_i21c	L	1hd	-	K confusion flag for 21mag/sq." iso. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Isophotal photom at 21 mag/sq.arcsec using J fiducial circ ap
172	r_j21fc	L	5.1f	arcsec	21mag/sq." isophotal J fiducial circular ap. radius. "Fiducial" apertures are determined for each type of total and isophotal photometry measurements as described in the GALWORKS SDS. Essentially, they are used to make mag measurements for each type of photometry with the same aperture size in all three bands. The fiducial band for the total Kron photometry and 20mag/sq." isophotal photometry is the K band, and for the 21mag/sq." isophotal photometry it is the J band.
173	j_m_j21fc	L	6.3f	mag	J 21mag/sq." isophotal fiducial circ. ap. mag.
174	j_msig_j21fc	L	5.3f	mag	J 1-sigma uncertainty in 21mag/sq." iso.fid.circ.mag.
175	j_flg_j21fc	L	1hd	-	J confusion flag for 21mag/sq." iso. fid. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
176	h_m_j21fc	L	6.3f	mag	H 21mag/sq." isophotal fiducial circ. ap. mag.
177	h_msig_j21fc	L	5.3f	mag	H 1-sigma uncertainty in 21mag/sq." iso.fid.circ.mag.
178	h_flg_j21fc	L	1hd	-	H confusion flag for 21mag/sq." iso. fid. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
179	k_m_j21fc	L	6.3f	mag	K 21mag/sq." isophotal fiducial circ. ap. mag.
180	k_msig_j21fc	L	5.3f	mag	K 1-sigma uncertainty in 21mag/sq." iso.fid.circ.mag.
181	k_flg_j21fc	L	1hd	-	K confusion flag for 21mag/sq." iso. fid. circ. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	Photometry from fixed circular aperture
182	j_m_5	L	6.3f	mag	J 5 arcsec radius circular aperture magnitude.
183	j_msig_5	L	5.3f	mag	J 1-sigma uncertainty in 5 arcsec circular ap. mag.
184	j_flg_5	L	1hd	-	J confusion flag for 5 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
185	h_m_5	L	6.3f	mag	H 5 arcsec radius circular aperture magnitude.
186	h_msig_5	L	5.3f	mag	H 1-sigma uncertainty in 5 arcsec circular ap. mag.
187	h_flg_5	L	1hd	-	H confusion flag for 5 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
188	k_m_5	L	6.3f	mag	K 5 arcsec radius circular aperture magnitude.
189	k_msig_5	L	5.3f	mag	K 1-sigma uncertainty in 5 arcsec circular ap. mag.
190	k_flg_5	L	1hd	-	K confusion flag for 5 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
191	j_m_7	L	6.3f	mag	J 7 arcsec radius circular aperture magnitude.
192	j_msig_7	L	5.3f	mag	J 1-sigma uncertainty in 7 arcsec circular ap. mag.
193	j_flg_7	L	1hd	-	J confusion flag for 7 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
194	h_m_7	L	6.3f	mag	H 7 arcsec radius circular aperture magnitude.
195	h_msig_7	L	5.3f	mag	H 1-sigma uncertainty in 7 arcsec circular ap. mag.
196	h_flg_7	L	1hd	-	H confusion flag for 7 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
197	k_m_7	L	6.3f	mag	K 7 arcsec radius circular aperture magnitude.
198	k_msig_7	L	5.3f	mag	K 1-sigma uncertainty in 7 arcsec circular ap. mag.
199	k_flg_7	L	1hd	-	K confusion flag for 7 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
200	j_m_10	L	6.3f	mag	J 10 arcsec radius circular aperture magnitude.
201	j_msig_10	L	5.3f	mag	J 1-sigma uncertainty in 10 arcsec circular ap. mag.
202	j_flg_10	L	1hd	-	J confusion flag for 10 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
203	h_m_10	L	6.3f	mag	H 10 arcsec radius circular aperture magnitude.
204	h_msig_10	L	5.3f	mag	H 1-sigma uncertainty in 10 arcsec circular ap. mag.
205	h_flg_10	L	1hd	-	H confusion flag for 10 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
206	k_m_10	L	6.3f	mag	K 10 arcsec radius circular aperture magnitude.
207	k_msig_10	L	5.3f	mag	K 1-sigma uncertainty in 10 arcsec circular ap. mag.
208	k_flg_10	L	1hd	-	K confusion flag for 10 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
209	j_m_15	L	6.3f	mag	J 15 arcsec radius circular aperture magnitude.
210	j_msig_15	L	5.3f	mag	J 1-sigma uncertainty in 15 arcsec circular ap. mag.
211	j_flg_15	L	1hd	-	J confusion flag for 15 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
212	h_m_15	L	6.3f	mag	H 15 arcsec radius circular aperture magnitude.
213	h_msig_15	L	5.3f	mag	H 1-sigma uncertainty in 15 arcsec circular ap. mag.
214	h_flg_15	L	1hd	-	H confusion flag for 15 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
215	k_m_15	L	6.3f	mag	K 15 arcsec radius circular aperture magnitude.
216	k_msig_15	L	5.3f	mag	K 1-sigma uncertainty in 15 arcsec circular ap. mag.
217	k_flg_15	L	1hd	-	K confusion flag for 15 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
218	j_m_20	L	6.3f	mag	J 20 arcsec radius circular aperture magnitude.
219	j_msig_20	L	5.3f	mag	J 1-sigma uncertainty in 20 arcsec circular ap. mag.
220	j_flg_20	L	1hd	-	J confusion flag for 20 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
221	h_m_20	L	6.3f	mag	H 20 arcsec radius circular aperture magnitude.
222	h_msig_20	L	5.3f	mag	H 1-sigma uncertainty in 20 arcsec circular ap. mag.
223	h_flg_20	L	1hd	-	H confusion flag for 20 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
224	k_m_20	L	6.3f	mag	K 20 arcsec radius circular aperture magnitude.
225	k_msig_20	L	5.3f	mag	K 1-sigma uncertainty in 20 arcsec circular ap. mag.
226	k_flg_20	L	1hd	-	K confusion flag for 20 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
227	j_m_25	L	6.3f	mag	J 25 arcsec radius circular aperture magnitude.
228	j_msig_25	L	5.3f	mag	J 1-sigma uncertainty in 25 arcsec circular ap. mag.
229	j_flg_25	L	1hd	-	J confusion flag for 25 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
230	h_m_25	L	6.3f	mag	H 25 arcsec radius circular aperture magnitude.
231	h_msig_25	L	5.3f	mag	H 1-sigma uncertainty in 25 arcsec circular ap. mag.
232	h_flg_25	L	1hd	-	H confusion flag for 25 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
233	k_m_25	L	6.3f	mag	K 25 arcsec radius circular aperture magnitude.
234	k_msig_25	L	5.3f	mag	K 1-sigma uncertainty in 25 arcsec circular ap. mag.
235	k_flg_25	L	1hd	-	K confusion flag for 25 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
236	j_m_30	L	6.3f	mag	J 30 arcsec radius circular aperture magnitude.
237	j_msig_30	L	5.3f	mag	J 1-sigma uncertainty in 30 arcsec circular ap. mag.
238	j_flg_30	L	1hd	-	J confusion flag for 30 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
239	h_m_30	L	6.3f	mag	H 30 arcsec radius circular aperture magnitude.
240	h_msig_30	L	5.3f	mag	H 1-sigma uncertainty in 30 arcsec circular ap. mag.
241	h_flg_30	L	1hd	-	H confusion flag for 30 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
242	k_m_30	L	6.3f	mag	K 30 arcsec radius circular aperture magnitude.
243	k_msig_30	L	5.3f	mag	K 1-sigma uncertainty in 30 arcsec circular ap. mag.
244	k_flg_30	L	1hd	-	K confusion flag for 30 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
245	j_m_40	L	6.3f	mag	J 40 arcsec radius circular aperture magnitude.
246	j_msig_40	L	5.3f	mag	J 1-sigma uncertainty in 40 arcsec circular ap. mag.
247	j_flg_40	L	1hd	-	J confusion flag for 40 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
248	h_m_40	L	6.3f	mag	H 40 arcsec radius circular aperture magnitude.
249	h_msig_40	L	5.3f	mag	H 1-sigma uncertainty in 40 arcsec circular ap. mag.
250	h_flg_40	L	1hd	-	H confusion flag for 40 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
251	k_m_40	L	6.3f	mag	K 40 arcsec radius circular aperture magnitude.
252	k_msig_40	L	5.3f	mag	K 1-sigma uncertainty in 40 arcsec circular ap. mag.
253	k_flg_40	L	1hd	-	K confusion flag for 40 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
254	j_m_50	L	6.3f	mag	J 50 arcsec radius circular aperture magnitude.
255	j_msig_50	L	5.3f	mag	J 1-sigma uncertainty in 50 arcsec circular ap. mag.
256	j_flg_50	L	1hd	-	J confusion flag for 50 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
257	h_m_50	L	6.3f	mag	H 50 arcsec radius circular aperture magnitude.
258	h_msig_50	L	5.3f	mag	H 1-sigma uncertainty in 50 arcsec circular ap. mag.
259	h_flg_50	L	1hd	-	H confusion flag for 50 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
260	k_m_50	L	6.3f	mag	K 50 arcsec radius circular aperture magnitude.
261	k_msig_50	L	5.3f	mag	K 1-sigma uncertainty in 50 arcsec circular ap. mag.
262	k_flg_50	L	1hd	-	K confusion flag for 50 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
263	j_m_60	L	6.3f	mag	J 60 arcsec radius circular aperture magnitude.
264	j_msig_60	L	5.3f	mag	J 1-sigma uncertainty in 60 arcsec circular ap. mag.
265	j_flg_60	L	1hd	-	J confusion flag for 60 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
266	h_m_60	L	6.3f	mag	H 60 arcsec radius circular aperture magnitude.
267	h_msig_60	L	5.3f	mag	H 1-sigma uncertainty in 60 arcsec circular ap. mag.
268	h_flg_60	L	1hd	-	H confusion flag for 60 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
269	k_m_60	L	6.3f	mag	K 60 arcsec radius circular aperture magnitude.
270	k_msig_60	L	5.3f	mag	K 1-sigma uncertainty in 60 arcsec circular ap. mag.
271	k_flg_60	L	1hd	-	K confusion flag for 60 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
272	j_m_70	L	6.3f	mag	J 70 arcsec radius circular aperture magnitude.
273	j_msig_70	L	5.3f	mag	J 1-sigma uncertainty in 70 arcsec circular ap. mag.
274	j_flg_70	L	1hd	-	J confusion flag for 70 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
275	h_m_70	L	6.3f	mag	H 70 arcsec radius circular aperture magnitude.
276	h_msig_70	L	5.3f	mag	H 1-sigma uncertainty in 70 arcsec circular ap. mag.
277	h_flg_70	L	1hd	-	H confusion flag for 70 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
278	k_m_70	L	6.3f	mag	K 70 arcsec radius circular aperture magnitude.
279	k_msig_70	L	5.3f	mag	K 1-sigma uncertainty in 70 arcsec circular ap. mag.
280	k_flg_70	L	1hd	-	K confusion flag for 70 arcsec circular ap. mag. The confusion flags [jhk]_flg for each mag are defined as follows: 0 if no other sources within aperture used 1 if ap contained pixels masked off in coadd 2 if ap contained pixels masked off due to neighboring sources 3 if ap contained pixels that had a point source flux subtracted off 4 if ap contained pixels within bright star mask 5 if ap contained pixels masked off due to persistence 6 if aperture ran into coadd boundary 7 if ap contained pixels within bright galaxy mask 9 if integrated flux is negative If the integrated flux is negative, a mag value is calculated using BFMag = 99.0 - [ZERO_CAL - 2.5 log10(\|flux\|)]; the resulting mag range is between ~ 75 and 99.
---	System photometry
281	j_m_sys	L	6.3f	mag	J system photometry magnitude. The system flux includes the flux from this extended source and anything else in the immediate area, including stars and neighboring galaxies that "touch" this source.
282	j_msig_sys	L	5.3f	mag	J 1-sigma uncertainty in system photometry mag.
283	h_m_sys	L	6.3f	mag	H system photometry magnitude. The system flux includes the flux from this extended source and anything else in the immediate area, including stars and neighboring galaxies that "touch" this source.
284	h_msig_sys	L	5.3f	mag	H 1-sigma uncertainty in system photometry mag.
285	k_m_sys	L	6.3f	mag	K system photometry magnitude. The system flux includes the flux from this extended source and anything else in the immediate area, including stars and neighboring galaxies that "touch" this source.
286	k_msig_sys	L	5.3f	mag	K 1-sigma uncertainty in system photometry mag.
287	sys_flg	L	1hd	-	system flag: 0=no system, 1=nearby galaxy flux incl. in mag.
288	contam_flg	L	1hd	-	contamination flag: 0=no stars, 1=stellar flux incl. in mag.
---	5-sigma area ratios
289	j_5sig_ba	L	5.3f	-	J minor/major axis ratio fit to the 5-sigma isophote.
290	j_5sig_phi	L	3hd	deg	J angle to 5-sigma major axis (E of N).
291	h_5sig_ba	L	5.3f	-	H minor/major axis ratio fit to the 5-sigma isophote.
292	h_5sig_phi	L	3hd	deg	H angle to 5-sigma major axis (E of N).
293	k_5sig_ba	L	5.3f	-	K minor/major axis ratio fit to the 5-sigma isophote.
294	k_5sig_phi	L	3hd	deg	K angle to 5-sigma major axis (E of N).
---	5-sigma to 3-sigma area
295	j_d_area	L	3hd	-	J 5-sigma to 3-sigma differential area.
296	j_perc_darea	L	3hd	-	J 5-sigma to 3-sigma percent area change.
297	h_d_area	L	3hd	-	H 5-sigma to 3-sigma differential area.
298	h_perc_darea	L	3hd	-	H 5-sigma to 3-sigma percent area change.
299	k_d_area	L	3hd	-	K 5-sigma to 3-sigma differential area.
300	k_perc_darea	L	3hd	-	K 5-sigma to 3-sigma percent area change.
---	Bi-symmetric quantities
301	j_bisym_rat	L	5.3f	-	J bi-symmetric flux ratio.
302	j_bisym_chi	L	6.3f	-	J bi-symmetric cross-correlation chi.
303	h_bisym_rat	L	5.3f	-	H bi-symmetric flux ratio.
304	h_bisym_chi	L	6.3f	-	H bi-symmetric cross-correlation chi.
305	k_bisym_rat	L	5.3f	-	K bi-symmetric flux ratio.
306	k_bisym_chi	L	6.3f	-	K bi-symmetric cross-correlation chi.
---	Parameters for extended src discrimination from point srcs
307	j_sh0	L	5.2f	-	J ridge shape (LCSB: BSNR limit).
308	j_sig_sh0	L	5.2f	-	J ridge shape sigma (LCSB: B2SNR limit).
309	h_sh0	L	5.2f	-	H ridge shape (LCSB: BSNR limit).
310	h_sig_sh0	L	5.2f	-	H ridge shape sigma (LCSB: B2SNR limit).
311	k_sh0	L	5.2f	-	K ridge shape (LCSB: BSNR limit).
312	k_sig_sh0	L	5.2f	-	K ridge shape sigma (LCSB: B2SNR limit).
313	j_sc_mxdn	L	6.1f	-	J mxdn (score) (LCSB: BSNR - block/smoothed SNR).
314	j_sc_sh	L	6.1f	-	J shape (score).
315	j_sc_wsh	L	6.1f	-	J wsh (score) (LCSB: PSNR - peak raw SNR).
316	j_sc_r23	L	6.1f	-	J r23 (score) (LCSB: TSNR - integrated SNR for r=15).
317	j_sc_1mm	L	6.1f	-	J 1st moment (score) (LCSB: super blk 2,4,8 SNR).
318	j_sc_2mm	L	6.1f	-	J 2nd moment (score) (LCSB: SNRMAX - super SNR max).
319	j_sc_vint	L	6.1f	-	J vint (score).
320	j_sc_r1	L	6.1f	-	J r1 (score).
321	j_sc_msh	L	6.1f	-	J median shape score.
322	h_sc_mxdn	L	6.1f	-	H mxdn (score) (LCSB: BSNR - block/smoothed SNR).
323	h_sc_sh	L	6.1f	-	H shape (score).
324	h_sc_wsh	L	6.1f	-	H wsh (score) (LCSB: PSNR - peak raw SNR).
325	h_sc_r23	L	6.1f	-	H r23 (score) (LCSB: TSNR - integrated SNR for r=15).
326	h_sc_1mm	L	6.1f	-	H 1st moment (score) (LCSB: super blk 2,4,8 SNR).
327	h_sc_2mm	L	6.1f	-	H 2nd moment (score) (LCSB: SNRMAX - super SNR max).
328	h_sc_vint	L	6.1f	-	H vint (score).
329	h_sc_r1	L	6.1f	-	H r1 (score).
330	h_sc_msh	L	6.1f	-	H median shape score.
331	k_sc_mxdn	L	6.1f	-	K mxdn (score) (LCSB: BSNR - block/smoothed SNR).
332	k_sc_sh	L	6.1f	-	K shape (score).
333	k_sc_wsh	L	6.1f	-	K wsh (score) (LCSB: PSNR - peak raw SNR).
334	k_sc_r23	L	6.1f	-	K r23 (score) (LCSB: TSNR - integrated SNR for r=15).
335	k_sc_1mm	L	6.1f	-	K 1st moment (score) (LCSB: super blk 2,4,8 SNR).
336	k_sc_2mm	L	6.1f	-	K 2nd moment (score) (LCSB: SNRMAX - super SNR max).
337	k_sc_vint	L	6.1f	-	K vint (score).
338	k_sc_r1	L	6.1f	-	K r1 (score).
339	k_sc_msh	L	6.1f	-	K median shape score.
340	j_chif_ellf	L	6.1f	-	J % chi-fraction for elliptical fit to 3-sig isophote.
341	k_chif_ellf	L	6.1f	-	K % chi-fraction for elliptical fit to 3-sig isophote.
342	ellfit_flg	L	1hd	-	ellipse fitting contamination flag.
343	sup_chif_ellf	L	6.1f	-	super-coadd % chi-fraction for ellip. fit to 3-sig isophote.
---	Coadd background, brightness
344	n_blank	L	4hd	-	number of blanked source records. These parameters refer to sources that were blanked and/or subtracted from the images before doing photometry. Data for each of these blanked or subtracted sources are found in the blanked and subtracted source tables.
345	n_sub	L	4hd	-	number of subtracted source records. These parameters refer to sources that were blanked and/or subtracted from the images before doing photometry. Data for each of these blanked or subtracted sources are found in the blanked and subtracted source tables.
346	bl_sub_flg	L	1hd	-	blanked/subtracted src description flag.
---	Other miscellaneous parameters
347	id_flg	L	1hd	-	type/galaxy ID flag (0=non-catalog, 1=catalog, 2=LCSB). This flag indicates the extended source catalog type as follows: 0 = extended source not found in another catalog 1 = extended source is found in galaxy catalog (ID found in id_cat field) 2 = LCSB (Low Central Surface Brightness) source
348	id_cat	L	20s	-	matched galaxy's catalog name.
349	fg_flg	L	6s	-	flux-growth convergence flag.
350	blk_fac	L	1hd	-	LCSB blocking factor (1, 2, 4, 8).
351	dup_src	L	1hd	-	Duplicate source flag. Used in conjunction with the use_src flag, this numerical flag indicates whether the source falls in a Tile overlap region, and if so, if it was detected multiple times. "0" = The source does not fall within a Tile overlap region (use_src="1"), or it falls in an overlap region and there were no sources detected within 2" of its position in the overlapping Tile (use_src="0"). "1" = The source falls within a Tile overlap region, and there is one source detected within 2" of its position in the overlapping Tile. ">1" = The source falls within a Tile overlap region, and there are multiple sources detected within 2" of its position in the overlapping Tile, and/or within its own Tile. This implies confusion in the multiple source resolution procedure.
352	use_src	L	1hd	-	Use source flag. Used in conjunction with the dup_src flag, this numerical flag indicates if a source falls within a Tile overlap region, and whether or not it satisfies the unbiased selection rules for multiple source resolution. "1" = The source does not fall in a Tile overlap region (dup_src="0"), or it falls in an overlap region, but lies farther from its scan edge than any apparition of the source in another Tile. A source must have use_src="1" to be considered part of the sub-Catalog that satisfies the 2MASS Level 1 Science Requirements "0" = The source falls in a Tile overlap region, but does not have a detection within 2" of its position in any overlapping Tiles. PSC sources with use_src="0" will always have dup_src="0". Such objects are usually faint, and thus toggling above and below the detection limits, or may have moved between the scans of the different Tiles. ">1" = The source falls within a Tile overlap region, and there are multiple sources detected within 2" of its position in the overlapping Tile, and/or within its own Tile. This implies confusion in the multiple source resolution procedure.
353	prox	L	5.1f	arcsec	Proximity. The distance between this source and its nearest neighbor in the PSC. The pts_key of the nearest source is given in the pxcntr column. The effective resolution of the 2MASS system is approximately 5". Any source with prox < 6" is potentially confused with a nearby object, and should be used with caution.
354	pxpa	L	3hd	deg	The position angle on the sky of the vector from the source to the nearest neighbor in the PSC, in degrees East of North. This column in null if prox=0.0, which occurs only for confused sources or from errors in the bandmerge process caused by confusion.
355	pxcntr	L	10d	-	ext_key value of nearest XSC source.
356	dist_edge_ns	L	%5d	arcsec	The distance from the source to the nearest North or South scan edge. The scan edge is defined by the great-circle interpolation between the 3-band coverage corners. The equatorial coordinates of the 3-band coverage corners are given in the Scan Information Table, referenced by the scan_key. The first character of the dist_edge_flg indicates to which edge the source is closer.
357	dist_edge_ew	L	%3d	arcsec	The distance from the source to the nearest East or West scan edge. The scan edge is defined by the great-circle interpolation between the 3-band coverage corners. The equatorial coordinates of the 3-band coverage corners are given in the Scan Information Table, referenced by the scan_key. The second character of the dist_edge_flg indicates to which edge the source is closer.
358	dist_edge_flg	L	%2s	-	flag indicating which edges ([n\|s][e\|w]) are nearest to src.
359	pts_key	L	10d	-	key to point source data DB record. If the source has point source data (i.e. it is not an LCSB), this field will be set to the key of the record in the point source table containing the point source data. The point source data will also have the same date, hemisphere, scan, id keys.
360	mp_key	L	5d	-	key to minor planet prediction DB record. If a minor planet (asteroid) is predicted at this src's position, the field is set to the key of the record containing the minor planet prediction data (see the minor planet tbls). The minor planet data will also have the same date, hemisphere, scan, id keys.
361	night_key	L	4d	-	key to night data record in "scan DB". This field is set to the key of the record containing the corresponding night data in the night data table. The records will also have the same date and hemisphere keys.
362	scan_key	S	6d	-	key to scan data record in "scan DB". This field is set to the key of the record containing the corresponding scan data in the scan data table. The records will also have the same date, hemisphere, scan keys.
363	coadd_key	L	7d	-	key to coadd data record in "scan DB". This field is set to the key of the record containing the corresponding J, H, and K band coadd data in the coadd data table. The records will also have the same date, hemisphere, scan, coadd keys.
364	hemis	L	1s	-	hemisphere (N/S) of observation. "n" = North/Mt. Hopkins; "s" = South/CTIO.
365	date	L	yyyy-mm-dd	-	The observation reference date for this source expressed in ISO standard format. This is the UT day value at sunrise for the night on which the source was observed. Because it is possible for the UT day to change during a night of observations, the actual UT date for a source measurement can differ from date by one day. Use the Julian Day value (jdate) for a more accurate determination of the observation time of the source.
366	scan	L	3hd	-	scan number (unique within date).
367	coadd	L	03hd	-	3-digit coadd number (unique within scan).
368	id	L	6d	-	source ID number (unique within scan, coadd).
369	x_coadd	L	6.1f	arcsec	x (cross-scan) position (coadd coord.).
370	y_coadd	L	6.1f	arcsec	y (in-scan) position (coadd coord.).
371	j_subst2	L	6.1f	-	J residual background #2 (score).
372	h_subst2	L	6.1f	-	H residual background #2 (score).
373	k_subst2	L	6.1f	-	K residual background #2 (score).
374	j_back	L	6.1f	-	J coadd median background.
375	h_back	L	6.1f	-	H coadd median background.
376	k_back	L	6.1f	-	K coadd median background.
377	j_resid_ann	L	7.3f	DN	J residual annulus background median.
378	h_resid_ann	L	7.3f	DN	H residual annulus background median.
379	k_resid_ann	L	7.3f	DN	K residual annulus background median.
380	j_bndg_per	L	5d	arcsec	J banding Fourier Transf. period on this side of coadd.
381	j_bndg_amp	L	6.3f	DN	J banding maximum FT amplitude on this side of coadd.
382	h_bndg_per	L	5d	arcsec	H banding Fourier Transf. period on this side of coadd.
383	h_bndg_amp	L	6.3f	DN	H banding maximum FT amplitude on this side of coadd.
384	k_bndg_per	L	5d	arcsec	K banding Fourier Transf. period on this side of coadd.
385	k_bndg_amp	L	6.3f	DN	K banding maximum FT amplitude on this side of coadd.
386	j_seetrack	L	4.1f	-	J band seetracking score.
387	h_seetrack	L	4.1f	-	H band seetracking score.
388	k_seetrack	L	4.1f	-	K band seetracking score.
389	ext_key	S	9d	-	entry counter (key) number (unique within table).

[Last Updated: 2020 May 07; by Jessica Mink, SAO]

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