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I/337 Gaia DR1 (Gaia Collaboration, 2016)
The following files can be converted to FITS (extension .fit or fit.gz)
gaia.sam tgas.dat tgasptyc.dat varsum.dat cepheid.dat rrlyrae.dat
fovparam.dat fov.dat qso.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=I/337
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drwxr-xr-x 317 cats archive 8192 Feb 28 11:16 [Up]
drwxr-xr-x 4 cats archive 4096 Dec 19 22:48 [TAR file]
-rw-r--r-- 1 cats archive 545 Dec 19 14:58 .message
-r--r--r-- 1 cats archive 65440 Dec 14 2020 ReadMe
-rw-r--r-- 1 cats archive 1005 Dec 19 14:56 +footg5.gif
-rw-r--r-- 1 cats archive 7640 Dec 19 15:02 +footg5.png
-rw-r--r-- 1 cats archive 2978 Dec 19 14:56 +footg8.gif
-rw-r--r-- 1 cats archive 74549 Dec 19 15:02 +footg8.png
-r--r--r-- 1 cats archive 120399 Sep 12 2016 cepheid.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 20519928 Aug 28 2016 fov.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 421608 Aug 28 2016 fovparam.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 495000 Aug 30 2016 gaia.sam
-r--r--r-- 1 cats archive 276066 Sep 9 2016 qso.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 477480 Sep 12 2016 rrlyrae.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-rw-r--r-- 1 cats archive 313920 Aug 22 2022 tab_1337_1_I_337_gaia.moc.fits
-r--r--r-- 1 cats archive 387151437 Sep 19 2016 tgas.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 415574608 Sep 20 2017 tgasptyc.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 162894 Aug 28 2016 varsum.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :I/337 Gaia DR1 (Gaia Collaboration, 2016)
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Gaia DR1 data.
Gaia collaboration
<Astron. Astrophys., 595, A1-A7, A133 (2016)>
=2016A&A...595A...1G
=2016yCat.1337....0G
=doi:10.5270/esa-ogmeula
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ADC_Keywords: Surveys ; Positional data ; Proper motions ;
Parallaxes, trigonometric
Mission_Name: Gaia
Keywords: catalogs - astrometry - parallaxes - proper motions - surveys
Abstract:
Gaia Data Release 1 (DR1) contains astrometric results for more than
1 billion stars brighter than magnitude 20.7 based on observations
collected by the Gaia satellite during the first 14 months of its
operational phase.
For stars in common with the Hipparcos and Tycho-2 catalogues,
complete astrometric single-star solutions are obtained by
incorporating positional information from the earlier catalogues. For
other stars only their positions are obtained, essentially by
neglecting their proper motions and parallaxes. The results are
validated by an analysis of the residuals, through special validation
runs, and by comparison with external data.
For about two million of the brighter stars (down to magnitude 11.5)
we obtain positions, parallaxes, and proper motions to Hipparcos- type
precision or better. For these stars, systematic errors depending for
example on position and colour are at a level of +/-0.3 milliarcsecond
(mas). For the remaining stars we obtain positions at epoch J2015.0
accurate to 10 mas. Positions and proper motions are given in a
reference frame that is aligned with the International Celestial
Reference Frame (ICRF) to better than 0.1mas at epoch J2015.0, and
non-rotating with respect to ICRF to within 0.03mas/yr. The Hipparcos
reference frame is found to rotate with respect to the Gaia DR1 frame
at a rate of 0.24mas/yr.
Description:
Gaia DR1 is based on observations collected between 25 July 2014 and
16 September 2015.
Gaia DR1 contains positions (RA,DE) and G magnitudes for all sources
with acceptable formal standard errors on positions. Positions and
individual uncertainties are computed using a generic prior and Bayes'
rule (detailed description in "Gaia astrometry for stars with too few
observations. A Bayesian approach", Michalik et al.,
2015A&A...583A..68M).
The five-parameter astrometric solution - positions, parallaxes, and
proper motions - for stars in common between the Tycho-2 Catalogue and
Gaia is contained in Gaia DR1. This part of Gaia DR1 is based on the
Tycho-Gaia Astrometric Solution (paper with detailed description
(Michalik et al., 2015A&A...574A.115M); paper describing theory and
background (Michalik et al., 2014A&A...571A..85M); paper describing
quasar extension (Michalik & Lindegren, 2016A&A...586A..26M)).
At the beginning of the routine phase, for a period of 4 weeks, a
special scanning mode repeatedly covering the ecliptic poles on every
spin was executed for calibration purposes. Photometric data of
selected RR Lyrae and Cepheid variable stars based on these
high-cadence measurements are contained in Gaia DR1.
Positions (RA,DE) and G magnitudes for 2152 ICRF quasars (F. Mignard
et al., 2016, A&A, in press.).
The Gaia Archive DR1 data is available at archives.esac.esa.int/gaia.
Tgas and Gaia Sources can be downloaded as VOTables, FITS or CSV at
http://cdn.gea.esac.esa.int/Gaia/
If you use public Gaia DR1 data in your paper, please take note of our
guide on how to acknowledge and cite Gaia DR1:
http://gaia.esac.esa.int/documentation/GDR1/Miscellaneous/sec_credit_and_citation_instructions.html