TGAS data was helpfully produced and given to us by Grégory Mantelet in the form of a FITS file, 2016-09. We pulled the file and the metadata from http://gaia.ari.uni-heidelberg.de:8181/tgas/gaiadr1_tgas.fits -- that was a test site at this point. The metadata we actually got doing curl -o meta.vot -FLANG=ADQL -FREQUEST=doQuery \ -FQUERY="select top 1 * from gaiadr1.tgas_source" \ http://gaia.ari.uni-heidelberg.de/tap/sync