Data model: galSpecInfo

General description: Information about fibers for which the MPA-JHU spectroscopic parameters pipeline has been run. This file is built out of a similar one in the galspec SVN product. It is designed to be line-by-line matched with the specObj list of all spectra. There is further information about the MPA-JHU results in the parallel files galSpecIndx, galSpecLine, and galSpecExtra. ID values are set to -1 for cases where there were no results from the MPA-JHU pipeline. In some cases, the pipeline was run but we don't believe the results are reliable, in which case the column "RELIABLE" is set to zero.

Naming convention: galSpecInfo-[DRNAME].fits

Approximate size: 500 Mbytes.

File type: FITS

Read by products: sas

Written by products: sas

Required column names:

• specObjID (int64): Unique ID
• plateid (int16): Plate number
• mjd (int32): Modified Julian Date of plate observation
• fiberid (int16): Fiber number (1 - 640)
• ra (float32): Right Ascention of drilled fiber position (degrees)
• dec (float32): Declination of drilled fiber position (degrees)
• primtarget (int16): Primary Target Flag (MAIN galaxy = 64)
• sectarget (int16): Secondary Target Flag (QA = 8)
• targettype (string): Text version of primary target (GALAXY/QA/QSO/ROSAT_D)
• spectrotype (string): Schlegel classification of spectrum ... code is only run where this is set to "GALAXY"
• subclass (string): Schlegel subclass from PCA analysis
• z (float32): Redshift from Schlegel
• z_err (float32): Redshift error
• z_warning (int16): Bad redshift if this is non-zero
• v_disp (float32): Velocity dispersion from Schlegel (km)
• v_disp_err (float32): Velocity dispersion error (negative for invalid fit) (km)
• sn_median (float32): Median S/N per pixel of the whole spectrum
• e_bv_sfd (float32): E(B-V) of foreground reddening from SFD maps
• release (string): Data Release (dr1/dr2/dr3/dr4)
• reliable (int16): has "reliable" line measurements and physical parameters