susa2 Examples

Example 1. Search with results to standard output

Find the 10 brightest USNO-SA2.0 stars in a 1-degree box centered on 10:00:00 +30:00:00 J2000 and sort them by right ascension.

susa2 -s r hn 10 -r -1800 10:00:00 +30:00:00 J2000

produces the following:

susa2 WCSTools 3.6.9, 6 July 2007, Doug Mink SAO
   USNO-SA2.0 10:00:00.000 +30:00:00.00 J2000 +- +00:34:38.5 +00:30:00.0 at epoch 2000.0000
10 / 1057 USNO SA-2.0 Catalog Stars (MagB brighter than 13.00)
USNO_SA2_number RA2000       Dec2000     MagB  MagR  Plate  Arcsec
1200.01272521 09:58:01.957 +30:14:35.64  12.6  11.1   316  1764.19
1125.01328858 09:59:15.835 +29:52:47.49  10.7   8.7   316   718.76
1200.01274861 09:59:25.313 +30:06:09.56  12.6  11.3   316   582.59
1125.01329453 09:59:36.218 +29:38:42.84   0.0   5.9     0  1314.12
1125.01330469 10:00:09.793 +29:54:57.55  13.0  11.8   316   328.14
1125.01331242 10:00:36.054 +29:31:15.89  11.9  11.1   316  1786.89
1125.01331381 10:00:40.648 +29:50:18.79  12.8  11.5   316   785.54
1200.01277285 10:00:52.723 +30:12:18.28  10.8   9.5   316  1006.56
1200.01278030 10:01:19.399 +30:18:02.73  12.0  10.8   316  1494.29
1125.01334263 10:02:18.009 +29:48:48.29  12.3  11.2   316  1916.0

Example 2. Search with results to a file

Find all USNO-SA2.0 stars within 5 arcminutes of M51 and write results to a file

susa2 -twr 300 -o m51 13:27:48.311 +47:27:28.98 B1950

produces the following in the file m51.usa2:

catalog USNO-SA2.0
ra      13:27:48.311
dec     +47:27:28.98
radecsys        fk4
equinox 1950.0000
epoch   1950.0000
radsec  300.00
catsort mag 
program susa2 WCSTools 3.6.9, 6 July 2007, Doug Mink SAO
usa2_id         ra1950          dec1950         magb    magr    plate   arcsec
-------------   ------------    ------------    -----   -----   -----   ------
1350.01319420   13:27:32.273    +47:29:04.27    16.3    15.0    174     188.48
1350.01319232   13:27:23.378    +47:27:32.96    16.4    14.7    174     252.90
1350.01320174   13:28:08.058    +47:30:23.33    16.8    16.2    174     265.46
1350.01319627   13:27:42.105    +47:23:10.24    16.8    15.5    174     266.29
1350.01320029   13:28:00.729    +47:27:02.61    17.3    16.2    174     128.68
1350.01319494   13:27:35.233    +47:27:19.58    17.5    17.0    174     132.97
1350.01319537   13:27:37.397    +47:24:42.31    17.6    16.6    174     200.10
1350.01319187   13:27:20.942    +47:25:44.72    17.7    15.6    174     296.58
1350.01319724   13:27:46.639    +47:28:52.35    17.7    18.9    174     85.07
1350.01319929   13:27:56.110    +47:29:33.86    17.8    16.3    174     147.80
1350.01320056   13:28:02.103    +47:28:19.06    18.0    17.4    174     148.56
1350.01320140   13:28:06.559    +47:25:55.25    18.0    17.2    174     207.49
1350.01319246   13:27:24.044    +47:28:19.71    18.2    17.7    174     251.26
1350.01319920   13:27:55.656    +47:23:46.58    18.5    17.6    174     234.56
1350.01319442   13:27:33.353    +47:26:01.02    18.5    18.7    174     175.39
1350.01319793   13:27:49.929    +47:30:21.03    18.6    18.1    174     172.83
1350.01320229   13:28:10.397    +47:27:37.03    18.9    18.5    174     224.13
1350.01320071   13:28:03.074    +47:25:57.22    18.9    19.3    174     175.63
1350.01319983   13:27:58.705    +47:23:31.56    18.9    16.8    174     259.79
1350.01319507   13:27:35.946    +47:30:28.61    18.9    18.9    174     219.04
1350.01319743   13:27:47.179    +47:24:06.35    19.6    18.4    174     202.95
1350.01319897   13:27:54.614    +47:24:56.96    19.6    17.8    174     164.93

Example 3. Find closest star

Find the closest USNO-SA2.0 star to 10:00:00 +30:00:00 J2000

susa2 -a 10:00:00 +30:00:00 J2000

produces the following:

1125.01330085 09:59:57.825 +29:59:41.89  18.6  18.9  316     33.56

Example 4. List selected stars from catalog

List USNO-SA2.0 Catalog stars 1350.00000001 through 1350.00000010

susa2 -h 1350.00000001-1350.00000010x0.00000001

produces the following:

susa2 WCSTools 3.6.9, 6 July 2007, Doug Mink SAO
USNO_SA2_number RA2000       Dec2000     MagB  MagR  Plate
1350.00000001 00:00:00.001 +50:16:36.55  18.0  16.9   150
1350.00000002 00:00:00.021 +48:16:23.00  17.8  16.5   150
1350.00000003 00:00:00.029 +48:19:42.19  16.5  15.1   150
1350.00000004 00:00:00.055 +45:20:58.10  17.2  16.4   193
1350.00000005 00:00:00.083 +48:20:53.87  18.5  16.9   150
1350.00000006 00:00:00.169 +48:26:26.06  18.4  17.1   150
1350.00000007 00:00:00.187 +47:41:52.77  17.3  16.3   150
1350.00000008 00:00:00.270 +48:35:33.82  17.8  16.5   150
1350.00000009 00:00:00.271 +49:35:24.89  18.8  17.5   150
1350.00000010 00:00:00.301 +51:34:21.11  18.7  18.0   15

Example 5. Match stars in input catalog

Match the stars in the input catalog test.tab to the USNO-SA-2.0 Catalog and list them one match per line.

susa2 -l @test.tab

produces the following:

240020 22:15:54.555 -11:36:56.13  9.80  __  0750.03187106 22:15:52.979 -11:36:51.07 16.40 15.40 247  -23.15    5.06   23.70
267313 17:47:51.210 -22:58:17.35  9.10  A0  0600.02528332 17:47:52.765 -22:57:37.74 18.90 17.20 284   21.47   39.61   45.06
196784 13:42:07.204 -09:06:40.06  8.60  K0  0750.01862157 13:42:04.262 -09:06:35.90 18.90 18.20 242  -43.57    4.16   43.77
127373 10:24:43.528 +11:21:21.15 10.20  K0  0975.01406170 10:24:43.493 +11:21:42.54 19.20 18.20 209   -0.51   21.39   21.40
095438 06:07:46.792 +23:28:44.76 10.30  K0  1125.00816662 06:07:44.208 +23:29:06.78 16.40 15.80 283  -35.55   22.02   41.82

where the columns are input catalog star name, RA, Dec, magnitude, spectral type, USNO-SA2.0 region.number, RA, Dec, B magnitude, R magnitude, number of stars in the 900-arcsecond-radius default search region, and catalog-search dra, ddec, and dr (in arcseconds).

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Last updated 11 July 2007 by Doug Mink [WCSTools] [WCSTools programs] [scat] [susa2] [susa1] [susa1 examples]