Catalog files and their description:

Change Log
24 Sept 2021: First Release

k2_observed_targets.fits

Catalog of all targets observed by K2. NAN is used for undfined value

Name	Description	Units
campaign	Campaign name (str) e.g, '1','2' '9A', '9B',..
cno	Campaign Number (int) e.g. 1,2,3...
flag_gf	1: Proposed by K2GAP 0: otherwise
flag_sf	1: Satisfies color mag selection 0: otherwise
tmass_id	2MASS catalog id
epic_id	EPIC catalog id
Columns from epic catalog	https://archive.stsci.edu/search_fields.php?mission=epic

k2_observed_simulated.fits

Targets satisfying a predefined color magnitude selection function. Contains targets observed by K2 and Kepler
and selection matched targets simulated by Galaxia. NAN is used for undfined value

Tag name	Description	Units
data_name	'k2-sydai2': For observed K2 data 'Galaxia-k2-sydai2-mrtd5': For Simulated data
cno	Campaign number, Kepler:-1, K2: 1 to 19
tmass_id	2MASS identifier
gaiadr2_source_id	Gaia DR2 identifier
epic_id	For K2 EPIC identifier, for Kepler Kepler identifier
weight	It is 1 for K2 stars but 0.1 for Galaxia stars. This is because in Galaxia stars are oversampled by a factor 10 hence they have a weight of 0.1.
numax	Frequency of maximum oscillation power nan if cannot be measured (SYD)	micro Hz
dnu	Frequency separation between overtone oscillation modes nan if cannot be measured (SYD)	micro Hz
e_numax	Uncertainty in numax	micro Hz
e_dnu	Uncertainty in dnu	micro Hz
label	Evolutionary state (See http://stev.oapd.inaf.it/cmd_3.5/faq.html) 3: Red giant 4: red Clump
kappa_m	Proxy for seismic mass
kappa_r	Proxy for seismic radius
tmass_j	2MASS J band	mag
tmass_h	2MASS H band	mag
tmass_ks	2MASS Ks band	mag
vmag_jk	V mag from J and Ks	mag
glon	galacitic longitude	degree
glat	galacitic latitude	degree
distance	Radial distance in spherical Heliocentric coordinates (from 1/parallax)	kpc
ra	Right ascension	degree
dec	Declination	degree
pmra	Proper motion along ra EDR3	mas/yr
pmdec	Proper motion along dec EDR3	mas/yr
parallax	Parallax EDR3 with zpt_ll2020 correction	mas
-----------------------	Following columns have valid values only for stars simulated by Galaxia	---------------------
log_age	Age (only for Galaxia) PARSEC Isochrones	log (age/yr)
meh	Effective Metallicity (only for Galaxia) Z_sun=0.0152	log(Z/Z_Sun)
smass	Stellar mass (only for Galaxia)	M_solar
mact	While smass is the initial mass of the star, mact is the actual mass taking mass loss into account. (only for Galaxia)	M_solar
log_teff	log (Effective Temperature) (only for Galaxia)	log(T/Kelvin)
log_grav	log (Surface gravity) (only for Galaxia)	log(gravity/(cm/s*s))
log_lum	log luminosity (only for Galaxia)	log(L/L_Sun)
exbv_schelegl	Extinction E(B-V)at the location of the star as given by the 3d Extinction model which is normalized to match the Schlegel maps at infinity, E^Schelgel_B-V (only for Galaxia)	mag
popid	Population ID, an integer indicating the population type ranging from 0 to 10. [0-6]: thin disc, 7: thick disc, 8: halo:8, 9: bulge (only for Galaxia)