This FITS binary structure contains SDSS targeting info from the plugmap and redshift and velocity dispersion info from David Schlegel's "spZbest" files.
Tag Name |
Data Type / Units
|
Description
|
| plateid |
int[1] |
Plate number |
| mjd |
long[1] |
Modified Julian Date of plate observation |
| fiberid |
int[1] |
Fiber number (1 - 640) |
| photoid |
int[5] |
Run, re-run, camcol, field of photo target observation |
| ra |
float[1] degrees |
Right Ascention of drilled fiber position |
| dec |
float[1] degrees |
Declination of drilled fiber position |
| plug_mag |
float[5] lupitudes |
ugriz fiber mag of photo target observation |
| primtarget |
int[1] |
Primary Target Flag (MAIN galaxy = 64) |
| sectarget |
int[1] |
Secondary Target Flag (QA = 8) |
| targettype |
string[1] |
Text version of primary target (GALAXY/QA/QSO/ROSAT_D) |
| spectrotype |
string[1] |
Schlegel classification of spectrum ... code is only run where this is set to "GALAXY" |
| subclass |
string[1] |
Schlegel subclass from PCA analysis -- not alwasy correct!! AGN/BROADLINE/STARBURST/STARFORMING |
| z |
float[1] |
Redshift from Schlegel |
| z_err |
float[1] |
Redshift error |
| z_warning |
int[1] |
Bad redshift if this is non-zero -- see Schlegel data model |
| v_disp | float[1] km/s |
Velocity dispersion from Schlegel |
| v_disp_err |
float[1] km/s |
Velocity dispersion error (negative for invalid fit) |
| sn_median |
float[1] |
Median S/N per pixel of the whole spectrum |
| e_bv_sfd |
float[1] |
E(B-V) of foreground reddening from SFD maps |
| ztweak |
float[1] |
Updated redshift from best fit template -- currently not implemented! |
| ztewak_err |
float[1] |
Error on updated redshift |
| spectro_mag |
float[3] AB mag |
Synthesized gri magnitudes of the spectrum after foreground dereddening |
| kcor_mag |
float[3] AB mag |
Synthesized gri magnitudes of the spectrum after foreground dereddening and de-redshifting |
| kcor_model_mag |
float[5] AB mag |
Synthesized ugriz magnitudes of the best fitting Bruzual-Charlot model in the galaxy restframe |
| release |
string[1] |
Data Release (dr1/dr2/dr3/dr4) |