name | type | length | unit | ucd | description |
specobjid | bigint | 8 | | | 64 bit unique spectrum id f(p,mjd,fiber) |
plate | int | 4 | | | plate number |
mjd | int | 4 | | | Modified Julian Date of (last) observation |
fiberid | int | 4 | | | Fiber number (1-640) 1-320 on spec#1 |
targettype | varchar | 64 | | | SEGUE or Legacy Target type string, see primtarget in specobjall table |
ra | float | 8 | degrees | | RA (J2000) |
dec | float | 8 | degrees | | DEC (J2000) |
brun | int | 4 | | | SDSS Run number (best version of sky) |
brerun | int | 4 | | | SDSS Rerun number (best version of sky) |
bcamcol | int | 4 | | | SDSS Camcol number (best version of sky) |
bfield | int | 4 | | | SDSS Field number (best version of sky) |
bobj | int | 4 | | | SDSS object number (best version of sky) |
zbsubclass | varchar | 64 | | | SpecBS subclass (type of star) |
zbelodiesptype | varchar | 64 | | | SpecBS ELODIE spectral type (type of best match template star) |
zbclass | varchar | 64 | | | SpecBS class (STAR, GALAXY, QSO) |
zbrchi2 | real | 4 | | | SpecBS rchi2 reduced chi-square per dof |
zbdof | real | 4 | | | SpecBS degrees of freedom measure for best fit template |
zbvdisp | real | 4 | km/s | | SpecBS Velocity dispersion (for galaxies) |
zbvdisperr | real | 4 | km/s | | SpecBS error in Velocity disp |
zbzwarning | real | 4 | | | SpecBS warning flag |
spec_cln | int | 4 | | | Spectro1d(Chicago) class 1= star, 2 = Galaxy, 3,4 = QSO, 6= redstar |
spz | real | 4 | | | Spectro1d(Chicago) redshift (Legacy primary objects hand inspected) |
spzerr | real | 4 | | | Spectro1d(Chicago) redhisft error |
vel_dis | real | 4 | km/s | | Spectro1d(Chicago) Velocity dispersion (for galaxies) |
vel_disperr | real | 4 | km/s | | Spectro1d(Chicago) Vel disp error |
spz_conf | real | 4 | | | Spectro1d(Chicago) redshift confidence |
spz_status | int | 4 | | | Spectro1d(Chicago) redshift status |
spz_warning | int | 4 | | | Spectro1d(Chicago) redshift warning |
eclass | real | 4 | | | Spectro1d(Chicago) galaxy Principal component class |
ecoeff1 | real | 4 | | | Galaxy Prin. comp. 1 (for galaxies) |
ecoeff2 | real | 4 | | | Galaxy Prin. comp. 2 (for galaxies) |
ecoeff3 | real | 4 | | | Galaxy Prin. comp. 3 (for galaxies) |
ecoeff4 | real | 4 | | | Galaxy Prin. comp. 4 (for galaxies) |
ecoeff5 | real | 4 | | | Galaxy Prin. comp. 5 (for galaxies) |