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VI/145 ASC Gaia Attitude Star Catalog (Smart, 2014)
The following files can be converted to FITS (extension .fit or fit.gz)
attitude.sam
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VI/145
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-rw-r--r-- 1 cats archive 407360620 Apr 20 2015 attitude.csv.gz [Uncompressed]
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-rw-r--r-- 1 cats archive 18299520 Aug 22 2022 tab_6145_1_VI_145_attitude.moc.fits Beginning of ReadMe :VI/145 ASC Gaia Attitude Star Catalog (Smart, 2015)
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The Gaia Attitude Star Catalog ASC
Smart, R. L.
=2015yCat.6145....0S
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ADC_Keywords: Astrometric data
Keywords: Positional_Data
Mission_Name: Gaia
Description:
The ASC is a compilation produced for the Gaia mission.
We have combined data from the following catalogs or datasets to
produce a homogenous list of positions, proper motions, photometry
in a blue and red band and estimates of the magnitudes in the Gaia
G and G_RVS bands: Tycho2, UCAC4, Hipparcos, PPMXL, GSC2.3 and Sky2000.
Originally ASC sources were selected from the Initial Gaia Source List
(IGSL, I/324). However, here we produce a cleaner catalog starting from
the bright source catalogs and using the following criteria:
1) The candidate must be in the Tycho2, UCAC4, Hipparcos or Sky2000
catalog.
2) The Gaia G magnitude must be brighter than 13.4.
3) The star must be isolated from other objects of similar magnitudes
4) The object must not be in the Washington Double Star catalog
5) If a healpix 6th region has more than 1000 objects the magnitude
limit is reduced to reduce the number of objects in that region.
Since the ASC was produced independently from the IGSL using different
procedures there is not a direct 1 to 1 match between ASC and IGSL
entries. We have matched the ASC to the IGSL and found that 9 out of
the 8 million entries do not have a clear match. Since there may still
remain ambiguous matches in the 8 million matched objects, we decided
to assign the sourceIDs of the IGSL with the adjustment that the
runningnumber is equal to the IGSL runningnumber + 320000.
Included Catalogs: Tycho2, UCAC4, Sky2000, HIPPARCOS for candidates and
the PPMXL, GSC2.3 were used to calculating magnitudes.