This webservice allows either forms access or programmatic access to the Guide Star Catalog(s) as well as a number of other catalogs available from MAST.

General Catalog Access : http://gsss.stsci.edu/webservices/vo/CatalogSearch.aspx?Parameters...

Required Parameter List
1 of the following 4 queries - VO ConeSearch, BoxSearch, StcsSearch, IDsearch

1. RA=ra(deg) &DEC=dec(deg) &SR=search radius(deg)
2. BBOX=raMin(deg),decMin(deg),raMax(deg),decMax(deg)
3. STCS=Space Time Coordinate System shape (eg, CIRCLE ICRS 254.58755449  34.21313021 0.1 or POLYGON 180.428742 -18.893042 180.455582 -18.906816 180.488081 -18.858382 180.461245 -18.84461 180.428742 -18.893042)
4. ID=catID (NOTE: do NOT place quotes around the IDs)

Optional Parameters

• FORMAT= VOTABLE(default) | HTML | KML | CSV | TSV | JSON | TEXT(limited set of catalogs)
• FILENAME=outputname (directs output to file)
• MAXOBJ=n (limits number of entries returned by brightest magnitude)
• MAGRANGE=bright,faint (limits number of entries returned by limits)
• MINDET=n (minimum numbr of detections PanSTARRS only)
• EPOCH=yyyy.y (Updates ra/dec using proper motion IF AVAILABLE)

• CATALOG=

  Catalogue Type	CATALOG=code	Description	Max search size
  GSC catalogues	GSC11	Guide Star Catalog v1.1 (Original catalogue for HST operations launch till 2000)	7.5 deg
  	GSC1xxx GSC1ZZQ GSC1ZZR GSC1ZZT GSC1ZZU GSC1ZZV GSC1ZZW GSC1ZZX GSC1ZZZ	Special catalogs of selected areas for HST calibrations Eta Carina Omega Centauri NGC5617 HR6945 HR6850 HR6636 Iota Carina NGC188
  	GSC12	v1.2 (updated Astrometry)	7.5 deg
  	GSC23	v2.3 (Used for HST operations 2000-2017)	5 deg
  	GSC240	v2.4.0 (used for HST operations 2017-2021)	5 deg
  	GSC241	v2.4.1	5 deg
  	GSC242 (default)	v2.4.2 (Current version for HST & JWST operations 2021- TBD)	5 deg
  	GSC243	v2.4.3	5 deg
  Astronomy Catalogues	2MASS	2MASS All-Sky IR survey Point Source Catalog	5 deg
  	2MASSXSC	2MASS All-Sky IR survey Extended Source Catalog	5 deg
  	APASS	AAVSO Photometric All Sky Survey DR9	5 deg
  	ASPICv11	All-Sky PLATO Input Catalog v1.1	5 deg
  	ATLAS	ATLAS All-Sky Reference Catalog	5 deg
  	FIRST	Faint Images of the Radio Sky at Twenty-cm source catalog	5 deg
  	GAIAdr1	GAIA Astrometric catalog of stellar positions and proper motions DR1	1 deg
  	GAIAdr2	GAIA Astrometric catalog of stellar positions and proper motions DR2	1 deg
  	GAIAedr3	GAIA Astrometric catalog of stellar positions and proper motions Early DR3	1 deg
  	GAIAdr3	GAIA Astrometric catalog of stellar positions and proper motions DR3	1 deg
  	GALEX	Galaxy Evolution Explorer DR6/7	5 deg
  	GSPC2	Guide Star Photometric Catalog v2	10 deg
  	IRAS	Infrared Astronomical Satellite	10 deg
  	KIC	Kepler Input Catalog	1 deg
  	KIDS	VST Kilo-Degree Survey	1 deg
  	Landolt	Landolt photometric standards	10 deg
  	NSCdr2	NOIRlab Source Catalog DR2	1 deg
  	PS1dr1	panSTARRS DR1 (mean detected objects)	0.25 deg
  	PS1Best	panSTARRS DR1 (mean detected objects with >2 detections + classifications)	0.25 deg
  	PS1dr2Objects	panSTARRS DR2 (mean detected objects)	0.25 deg
  	PS1dr2Detections	panSTARRS DR2 (individual detections)	0.25 deg
  	PS1dr2	panSTARRS DR2 (mean detected objects with >2 detections)	0.25 deg
  	RC3	3rd Reference Catalog of Bright Galaxies	10 deg
  	SDSS	Sloan Digital Sky Survey DR16	1 deg
  	SMSSdr1	SkyMapper Southern Sky survey DR1	1 deg
  	SMSSdr2	SkyMapper Southern Sky survey DR2	1 deg
  	TESSINPUT	TESS Input Catalog v8.2	5 deg
  	TGAS	Tycho-GAIA Astrometric System	1 deg
  	UCAC5	USNO CCD Astrograph Catalog v5	7.5 deg
  	UltraVISTA	VISTA Deep/Ultra-Deep Near-IR Survey of the COSMOS Field	1 deg
  	USNOB	USNO-B Astrometric catalog v1.0	2 deg
  	VIKING	VISTA Kilo-degree Infrared Galaxy Survey DR2	1 deg
  	VistaVhs	VISTA Hemisphere Survey DR4	1 deg
  	VSTAtlas	VST ATLAS survey DR3	1 deg
  	WISE / ALLWISE	Wide-field Infrared Survey Explorer	1 deg
  Common Archive Observation Model	CAOM_OBSCORE CAOM_OBSPOINTING CAOM_CALPOINTING CAOM_ALLPOINTING	IVOA obsCore data model MAST portal results grid (science / calibration / all)	10 deg
  High Level Science Product Catalogs	HLSP_30DOR	Hubble Tarantula Treasury Project	1 deg
  	HLSP_47TUC	Deep HST ACS Imaging of 47 Tuc	1 deg
  	HLSP_HLASTARCLUSTERS	The HLA Star Cluster Project	1 deg
  	HLSP_PHAT	The Panchromatic Hubble Andromeda Treasury	0.2 deg
  	HLSP_TESSHERMES	TESS-HERMES Spectroscopic Survey	1 deg
  Hubble Legacy Archive Catalogs	HLA_ACS_DAO	ACS DaoPhot catalogs	2 deg
  	HLA_ACS_SEX	ACS SourceExtractor catalogs	2 deg
  	HLA_GRI	ACS/NICMOS Grism observations (from ESO)	2 deg
  	HLA_NICMOS_DAO	NICMOS DaoPhot catalogs	2 deg
  	HLA_NICMOS_SEX	NICMOS SourceExtractor catalogs	2 deg
  	HLA_WFC3_DAO	WFC3 DaoPhot catalogs	2 deg
  	HLA_WFC3_SEX	WFC3 SourceExtractor catalogs	2 deg
  	HLA_WFPC2_DAO	WFPC2 DaoPhot catalogs (from CADC)	2 deg
  	HLA_WFPC2_SEX	WFPC2 SourceExtractor catalogs (from CADC)	2 deg

  
  

e.g.

• http://gsss.stsci.edu/webservices/vo/CatalogSearch.aspx?RA=83.633083&DEC=22.0145&SR=.01&FORMAT=html&CAT=PS1V3OBJECTS&MINDET=25&MAXOBJ=5
• http://gsss.stsci.edu/webservices/vo/CatalogSearch.aspx?CAT=PS1V3OBJECTS&ID=134410836341049171&FORMAT=HTML
• http://gsss.stsci.edu/webservices/vo/CatalogSearch.aspx?ra=10&dec=20&sr=0.05&format=html
• https://gsss.stsci.edu/webservices/vo/CatalogSearch.aspx?ra=10&dec=20&sr=0.05&format=html&cat=caom_allpointing
• http://gsss.stsci.edu/webservices/vo/CatalogSearch.aspx?bbox=10,20,10.5,21&format=csv&catalog=gsc11
• http://gsss.stsci.edu/webservices/vo/CatalogSearch.aspx?id=NBQI004317