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- Telescopes & Instruments
- Data References
- Observing Information
- Software & Data Resources
- Direct Links to Useful Sites
The Smithsonian Astrophysical Observatory Telescope Data Center maintains archives of data from SAO and HCO telescopes.
- Low-dispersion spectrographs are used primarily for extra-galactic sources.
- Echelle spectrographs are used for star spectra and radial velocities.
| Instrument | Description | Number of spectra
Online |
Date Range | Range
(Angstroms) |
Resolution
(Ang/Pixel) |
Reference | Search |
|---|---|---|---|---|---|---|---|
| Z-Machine Spectrograph | Reticon spectrograph formerly on the Mt. Hopkins Tillinghast 60-inch reflector | 27,171 | August 1978 to September 1993 | 4500 - 7200 | 1.2 | Processing is described in Mink and Wyatt, 1991. | Archive Search |
| FAST Spectrograph | Long slit CCD spectrograph currently used on the Mt. Hopkins Tillinghast 60-inch reflector | 110,078 | January 1994 to the present | 3660 - 7535 | 1.47 | Processing is described in Tokarz and Roll, 1996. | Archive Search |
| Hectospec Spectrograph | 300-fiber CCD spectrograph currently used on the MMT 6.5-meter reflector | 10,100 | November 2003 to the present | 3700 - 9150 | 1.47 | Processing is described in Mink et al., 2006. |
Public Archive Search
Published Early Programs |
| Updated Zwicky Catalog of Galaxies | Catalog of galaxy positions and redshifts, published in 1999, with access to the spectra upon which the redshifts are based. | 19,367 galaxies
7,026 Z-Machine spectra 4,488 FAST spectra |
before 1999 | variable | variable | Falco, et.al., 1999 | Archive Search |
| MMT Blue Channel Spectrograph | Low dispersion reticon spectra taken on the MMT | 8,790 | October 1980 to October 1994 | 3200 - 7000 | 1.4 | none | Archive Search |
| Oak Ridge Echelle Spectrograph | High dispersion Echelle reticon spectra taken on the Oak Ridge 61-inch telescope | 122,829 | July 1982 to July 2005 | 5166 - 5611 (usually) |
0.01 | none | Public Archive Search |
| Mt. Hopkins Echelle Spectrograph | High dispersion Echelle reticon spectra taken on the Mt. Hopkins Tillinghast 60-inch reflector have been archived | 82,295 | December 1978 to the present | 5166 - 5611 (usually) |
0.01 | none | Public Archive Search |
- There is locally-written software
to access the Z-Machine, MMT Spectrograph, and Echelle archives
in their native formats.
-
Raw data is currently archived but not publicly available.
- The
Harvard Plate Stacks, covering the entire sky from the 1880's to
the 1990's, are being catalogued and scanned. Positions of 80,000 plates
from three plate series are searchable online, but only 10,000 or so plates
have been scanned so far.
- Data from the IOTA optical interferometer is being archived.
Last updated 25 February 2013