Index 5000 ---------- These were created from the Gaia-DR2 catalogs. RA,Dec positions are the straight Gaia positions -- so, in the J2000 reference frame, at the position at the epoch of observation (~2015.5). The catalogs include the Gaia proper motions and parallaxes: HDU #14 Binary Table: 13 columns x N rows NAME FORMAT source_id 1K phot_g_mean_mag 1E phot_bp_mean_mag 1E phot_rp_mean_mag 1E parallax 1E parallax_error 1E pmra 1E pmra_error 1E pmdec 1E pmdec_error 1E ra 1D dec 1D ref_epoch 1E They were created like this: for ((s=0; s<2; s++)); do S=$(printf %02d $s); for ((i=0; i<12; i++)); do I=$(printf %02d $i); build-astrometry-index -i $CSCRATCH/gaia-dr2-healpixed-48/gaia-dr2-hp$I.fits -o $CSCRATCH/gaia-dr2-index/index-50$S-$I.fits -P $s -S phot_g_mean_mag -H $i -s 2 -r 1 -L 16 -I 50$S -K & done wait done etc. The healpixed files were created like: hpsplit -o $CSCRATCH/gaia-dr2-healpixed-48/gaia-dr2-hp%02i.fits -n 2 -m 1 -c source_id -c phot_g_mean_mag -c phot_bp_mean_mag -c phot_rp_mean_mag -c parallax -c parallax_error -c pmra -c pmra_error -c pmdec -c pmdec_error -c ra -c dec -c ref_epoch ~/cosmo/work/gaia/chunks-gaia-dr2-astrom/chunk*.fits > 48.log 2>&1 &