column (unit) -- meaning
----------------------------
TYCHO.ID -- Tycho2 ID
TGAS.ID -- TGAS ID
RAVE.ID -- RAVE5 ID
LAMOST.ID -- LAMOST.ID
UPC.ID -- UPC ID
WIN.ID -- name in the catalog of J/AJ/149/5/Mdwarfs, ref. Winters et al. 2015, AJ, 149, 5
cat -- catalog name
component -- primary (1) or secondary (2) component of encounter pair
denc.nom (pc) -- nominal periapsis
denc.mean (pc) -- mean periapsis
denc.per5 (pc) -- 5% quantile of denc
denc.per95 (pc) -- 95% quantil of denc
tenc.nom (Myr) -- nominal time at periapsis
tenc.mean (Myr) -- mean periapsis
tenc.per5 (Myr) -- 5% quantile of tenc
tenc.per95 (Myr) -- 95% quantil of tenc
venc.nom (km/s) -- nominal velocity at periapsis
venc.mean (km/s) -- mean periapsis
venc.per5 (km/s) -- 5% quantile of venc
venc.per95 (km/s) -- 95% quantil of venc
ra (deg) -- right ascension (ICRS J2000)
dec (deg) -- declination (ICRS J2000)
parallax (mas) -- parallax
pmra (mas/yr) -- proper motion in right ascension
pmdec (mas/yr) -- proper motion in declination
ra_error (mas) -- error of right ascension
dec_error (mas) -- error of declination
parallax_error (mas) -- error of parallax
pmra_error (mas) -- error of proper motion in right ascension
pmdec_error -- error of proper motion in declination
ra_dec_corr -- correlation between ra and dec
ra_parallax_corr -- correlation between parallax and dec
ra_pmra_corr -- correlation between ra and pmra
ra_pmdec_corr -- correlation between ra and pmdec
dec_parallax_corr -- correlation between dec and parallax
dec_pmra_corr -- correlation between dec and pmra
dec_pmdec_corr -- correlation between dec and pmdec
parallax_pmra_corr -- correlation between parallax and pmra
parallax_pmdec_corr -- correlation between parallax and pmdec
pmra_pmdec_corr -- correlation between pmra and pmdec
rv (km/s) -- radial velocity
erv (km/s) -- error of radial velocity