Columns:

id          =  Identifier number for a given source.
alpha_j2000 =  J2000 Right Ascension in decimal degrees.  
delta_j2000 =  J2000 Declination in decimal degrees.  
nuv         =  NUV flux of direct image source in photons per second.
fuv         =  FUV flux of direct image source in photons per second.