add missing column

Author: weaverba137

doc/DESI_SPECTRO_REDUX/SPECPROD/exposures-SPECPROD.rst

@@ -163,18 +163,19 @@ TILEDEC         float64  deg    DEC of tile given in fiberassign file
 MJD             float64         Modified Julian Date when shutter was opened for this exposure.
 EXPTIME         float32  s      Length of time shutter was open.
 AIRMASS         float32         Average airmass during this exposure.
-EBV             float64         Galactic extinction E(B-V) reddening from SFD98_
+EBV             float32         Galactic extinction E(B-V) reddening from SFD98_
 SEEING_ETC      float64  arcsec Average FWHM atmospheric seeing during this exposure as measured by ETC.
-EFFTIME_ETC     float32  s      Effective exposure time for nominal conditions derived from exposure ETC data
+EFFTIME_ETC     float64  s      Effective exposure time for nominal conditions derived from exposure ETC data
 CAMERA          char[2]         Camera identifier. Passband and SPECGRPH ([brz][0-9]).
-TSNR2_GPBDARK   float32         GPBDARK template (S/N)^2 summed over B,R,Z
-TSNR2_ELG       float32         ELG template (S/N)^2 summed over B,R,Z
-TSNR2_GPBBRIGHT float32         GPBBRIGHT template (S/N)^2 summed over B,R,Z
+TSNR2_GPBDARK   float64         GPBDARK template (S/N)^2 summed over B,R,Z
+TSNR2_ELG       float64         ELG template (S/N)^2 summed over B,R,Z
+TSNR2_GPBBRIGHT float64         GPBBRIGHT template (S/N)^2 summed over B,R,Z
 TSNR2_LYA       float64         LYA template (S/N)^2 summed over B,R,Z
-TSNR2_BGS       float32         BGS template (S/N)^2 summed over B,R,Z
-TSNR2_GPBBACKUP float32         GPBBACKUP template (S/N)^2 summed over B,R,Z
-TSNR2_QSO       float32         QSO template (S/N)^2 summed over B,R,Z
-TSNR2_LRG       float32         LRG template (S/N)^2 summed over B,R,Z
+TSNR2_BGS       float64         BGS template (S/N)^2 summed over B,R,Z
+TSNR2_GPBBACKUP float64         GPBBACKUP template (S/N)^2 summed over B,R,Z
+TSNR2_QSO       float64         QSO template (S/N)^2 summed over B,R,Z
+TSNR2_LRG       float64         LRG template (S/N)^2 summed over B,R,Z
+TSNR2_ALPHA     float32         *Description needed.*
 SURVEY          char[7]         Survey name
 GOALTYPE        char[6]         The intended observing conditions for the tile
 FAPRGRM         char[*]         PROGRAM in fiberassign file