SDSS Data Model for spZall

File Format:
FITS binary table
Name:
spZall-pppp-mmmmm.fits

Description

This file is a FITS binary table identical in form to the spZbest file, but with all the fits ever done to each object. This includes 5 possible galaxy redshifts, 5 possible QSO redshifts, and 1 for each of many types of stars. They are rank-sorted for each object, letting you go through and keep asking "but what's the next best fit?". This is what the IDL procedure plotspec uses when the ZNUM keyword is specified. For example, ZNUM=2 will over-plot the 2nd-best fit eigenspectrum.

Not all of the parameters in the spZbest file are computed for the spZall file. For example, the SDSS filter convolutions are not done.

Primary HDU

SIMPLE  =                    T / FIT STANDARD                                   
BITPIX  =                   16 / FITS BITS/PIXEL                                
NAXIS   =                    0 / NUMBER OF AXES                                 
EXTEND  =                    T /                                                
TAI     =        4482194319.54 / 1st row - Number of seconds since Nov 17 1858  
RA      =            28.656976 / 1st row - Right ascension of telescope boresigh
DEC     =            13.804520 / 1st row - Declination of telescope boresight (d
EQUINOX =              2000.00 /                                                
RADECSYS= 'FK5     '           /                                                
AZ      =        306.432220000 / 1st row - Azimuth  (encoder) of tele (0=N?) (de
ALT     =        61.3134576667 / 1st row - Altitude (encoder) of tele        (de
AIRMASS =              1.10307 /                                                
FOCUS   = -999999999999.999999 / 1st row - Focus piston (microns?)              
DATE-OBS= '2000-11-29'         / 1st row - TAI date                             
TAIHMS  = '05:40:17.51'        / 1st row - TAI time (HH:MM:SS.SS) (TAI-UT = appr
TIMESYS = 'tai     '           / TAI, not UTC                                   
TAI-BEG =        4482192260.00 / Exposure Start Time                            
TAI-END =        4482195390.00 / Exposure End Time                              
MJD     =                51877 / MJD of observation                             
MJDLIST = '51877   '           /                                                
VERSION = 'v3_19_1 '           / version of IOP                                 
CAMVER  = 'SPEC2 v4_5'         / Camera code version                            
OBSERVER= 'harvanek'                                                            
OBSCOMM = 'science '                                                            
TELESCOP= 'SDSS 2.5-M'         / Sloan Digital Sky Survey                       
NEXP    =                   12 / Number of exposures in this file               
BESTEXP =                 7251 /                                                
EXPID01 = 'b1-00007250-00007254-00007255' / ID string for exposure 1            
EXPID02 = 'b1-00007251-00007254-00007255' / ID string for exposure 2            
EXPID03 = 'b1-00007252-00007254-00007255' / ID string for exposure 3            
EXPID04 = 'b2-00007250-00007254-00007255' / ID string for exposure 4            
EXPID05 = 'b2-00007251-00007254-00007255' / ID string for exposure 5            
EXPID06 = 'b2-00007252-00007254-00007255' / ID string for exposure 6            
EXPID07 = 'r1-00007250-00007254-00007255' / ID string for exposure 7            
EXPID08 = 'r1-00007251-00007254-00007255' / ID string for exposure 8            
EXPID09 = 'r1-00007252-00007254-00007255' / ID string for exposure 9            
EXPID10 = 'r2-00007250-00007254-00007255' / ID string for exposure 10           
EXPID11 = 'r2-00007251-00007254-00007255' / ID string for exposure 11           
EXPID12 = 'r2-00007252-00007254-00007255' / ID string for exposure 12           
NEXP_B1 =                    3 / b1 camera number of exposures                  
NEXP_B2 =                    3 / b2 camera number of exposures                  
NEXP_R1 =                    3 / r1 camera number of exposures                  
NEXP_R2 =                    3 / r2 camera number of exposures                  
EXPT_B1 =              2700.00 / b1 camera exposure time (seconds)              
EXPT_B2 =              2700.00 / b2 camera exposure time (seconds)              
EXPT_R1 =              2700.00 / r1 camera exposure time (seconds)              
EXPT_R2 =              2700.00 / r2 camera exposure time (seconds)              
EXPTIME =              2700.00 / Minimum of exposure times for all cameras      
SPCOADD = 'Fri May 11 07:26:36 2007' / SPCOADD finished                         
FLAVOR  = 'science '           / Flavor of this sequence (e.g., dome flat, etc.)
QUALITY = 'excellent'          / night/image quality                            
RADEG   = 2.86571000000000E+01 / Right Ascension. (degrees)                     
DECDEG  = 1.38045200000000E+01 / Declination. (degrees)                         
PLATEID =                  430 / Plate Id                                       
TILEID  =                  208 / Tile Id                                        
CARTID  =                    5 /Cartridge used in this plugging                 
MAPID   =              5187701 / Map Id                                         
NAME    = '0430-51877-01'      / Name of target; PlateId-MJD-Mapper ReRun       
NGUIDE  =              21.0000 / Number of guider frames during exposure        
SEEING20=              2.08333 / 20% seeing during exposure (arcsec)            
SEEING50=              2.20333 / 50% seeing during exposure (arcsec)            
SEEING80=              2.36333 / 80% seeing during exposure (arcsec)            
RMSOFF20=       0.128227666667 / 20% RMS offset of guide fibers (arcsec)        
RMSOFF50=       0.251879666667 / 50% RMS offset of guide fibers (arcsec)        
RMSOFF80=       0.442921666667 / 80% RMS offset of guide fibers (arcsec)        
COLBIN  =                    1 / Binning factor perpendicular to the columns    
ROWBIN  =                    1 / Binning factor perpendicular to the rows       
PROGRAM = 'binning 1   1 '     / Identifying name for CCD program               
SECFOCUS= -1.3000000000000E+02 / Secondary Mirror Position as reported by TCC   
GUIDEIMG= '/data/spectro/guider/gimg0756.fits' / Last archived guider image     
WTIME   =        975476788.000 / weatherData(timeStamp)                         
AIRTEMP =        5.30000000000 / weatherData(airtemp)                           
DEWPOINT=       -8.20000000000 / weatherData(dewpoint)                          
DEWDEP  =        13.5000000000 / weatherData(dewpointDep)                       
DUSTA   =        5254.00000000 / weatherData(dusta)                             
DUSTB   =        135.666666667 / weatherData(dustb)                             
DUSTC   =        6086.33333333 / weatherData(dustc)                             
DUSTD   =        155.000000000 / weatherData(dustd)                             
GUSTD   = 7.95000000000000E+01 / weatherData(gustd)                             
GUSTS   =        11.7000000000 / weatherData(gusts)                             
HUMIDITY=        37.0666666667 / weatherData(humidity)                          
HUMIDOUT=        36.3333333333 / weatherData(humidout)                          
PRESSURE=        21.5700000000 / weatherData(pressure)                          
WINDD   =        87.0666666667 / weatherData(windd)                             
WINDS   =        8.83333333333 / weatherData(winds)                             
TEMP01  =       -94.1400000000 / CCD 01 Temperature                             
TEMP02  =       -92.9700000000 / CCD 02 Temperature                             
TEMP03  =       -92.5800000000 / CCD 03 Temperature                             
TEMP04  =       -93.4900000000 / CCD 04 Temperature                             
AUTHOR  = 'Scott Burles & David Schlegel' /                                     
VERSIDL = '6.3     '           / Version of IDL                                 
VERSUTIL= 'v5_2_0  '           / Version of idlutils                            
VERSREAD= 'v5_3_3  '           / Version of idlspec2d for pre-processing raw dat
VERS2D  = 'v5_3_3  '           / Version of idlspec2d for 2D reduction          
VERSCOMB= 'v5_3_2  '           / Version of idlspec2d for combining multiple spe
VERS1D  = 'v5_3_2  '           /Version of idlspec2d for 1D reduction           
VERSLOG = 'fermi-CVS 05/11/07' / Version of SPECLOG product                     
VERSFLAT= 'v1_7    '           / Version of SPECFLAT product                    
OPBC    = 'opBC-51813.par'     /                                                
OPCONFIG= 'opConfig-50000.par' /                                                
OPECALIB= 'opECalib-51577.par' /                                                
XSIGMA  =       0.938221750000 /                                                
XSIGMIN =       0.904645000000 /                                                
XSIGMAX =       0.997335000000 /                                                
WSIGMA  =       0.890092998379 /                                                
WSIGMIN =       0.845413000000 /                                                
WSIGMAX =        1.00929999352 /                                                
PLUGFILE= 'plPlugMapM-0430-51877-01.par' /                                      
LAMPLIST= 'lamphgcdne.dat'     /                                                
SKYLIST = 'skylines.dat'       /                                                
HELIO_RV=        18.0336065943 / Heliocentric correction (added to velocities)  
VACUUM  =                    T / Wavelengths are in vacuum                      
SFLATTEN=                    T / Superflat has been applied                     
PSFSKY  =                    3 / Order of PSF skysubtraction                    
SKYCHI2 =        1.08416902433 / Mean chi^2 of sky-subtraction                  
SCHI2MIN=        1.05534681302 /                                                
SCHI2MAX=        1.17834241969 /                                                
PREJECT =             0.200000 / Profile area rejection threshold               
SPEC1_G =              17.7522 /(S/N)^2 for spec  1 at mag 20.20                
SPEC1_R =              18.6219 /(S/N)^2 for spec  1 at mag 20.25                
SPEC1_I =              17.6288 /(S/N)^2 for spec  1 at mag 19.90                
SPEC2_G =              16.2644 /(S/N)^2 for spec  2 at mag 20.20                
SPEC2_R =              15.6690 /(S/N)^2 for spec  2 at mag 20.25                
SPEC2_I =              13.8085 /(S/N)^2 for spec  2 at mag 19.90                
NSTD    =                   16 / Number of (good) std stars                     
GOFFSTD =           -0.0162220 / Spectrophoto offset for std stars in G-band    
GRMSSTD =            0.0757010 / Spectrophoto RMS for std stars in G-band       
ROFFSTD =           -0.0105619 / Spectrophoto offset for std stars in R-band    
RRMSSTD =            0.0487866 / Spectrophoto RMS for std stars in R-band       
IOFFSTD =           -0.0130701 / Spectrophoto offset for std stars in I-band    
IRMSSTD =            0.0493715 / Spectrophoto RMS for std stars in I-band       
GROFFSTD=           -0.0187340 / Spectrophoto offset for std stars in (GR)      
GRRMSSTD=            0.0497939 / Spectrophoto RMS for std stars in (GR)         
RIOFFSTD=            0.0102034 / Spectrophoto offset for std stars in (RI)      
RIRMSSTD=            0.0328852 / Spectrophoto RMS for std stars in (RI)         
NGAL    =                  417 / Number of (good) main galaxies                 
GOFFGAL =           0.00672913 / Spectrophoto offset for main galaxies in G-band
GRMSGAL =            0.0455279 / Spectrophoto RMS for main galaxies in G-band   
ROFFGAL =           0.00734711 / Spectrophoto offset for main galaxies in R-band
RRMSGAL =            0.0433952 / Spectrophoto RMS for main galaxies in R-band   
IOFFGAL =           0.00634956 / Spectrophoto offset for main galaxies in I-band
IRMSGAL =            0.0454840 / Spectrophoto RMS for main galaxies in I-band   
GROFFGAL=           0.00297165 / Spectrophoto offset for main galaxies in (GR)  
GRRMSGAL=            0.0415170 / Spectrophoto RMS for main galaxies in (GR)     
RIOFFGAL=          -0.00133705 / Spectrophoto offset for main galaxies in (RI)  
RIRMSGAL=            0.0243410 / Spectrophoto RMS for main galaxies in (RI)     
LOWREJ  =                    5 / Extraction: low rejection                      
HIGHREJ =                    8 / Extraction: high rejection                     
SCATPOLY=                    0 / Extraction: Order of scattered light polynomial
PROFTYPE=                    3 / Extraction profile: 1=Gaussian                 
NFITPOLY=                    1 / Extraction: Number of parameters in each profil
XCHI2   =              1.20192 / Extraction: Mean chi^2                         
XCHI2MIN=              1.12970 /                                                
XCHI2MAX=              1.28281 /                                                
NWORDER =                    2 / Linear-log10 coefficients                      
WFITTYPE= 'LOG-LINEAR'         / Linear-log10 dispersion                        
COEFF0  =        3.58000000000 / Central wavelength (log10) of first pixel      
COEFF1  =    0.000100000000000 / Log10 dispersion per pixel                     
UNAME   = 'fnpc217.fnal.gov'   /                                                
FBADPIX =            0.0114787 / Fraction of bad pixels                         
FBADPIX1=           0.00687047 / Fraction of bad pixels on spectro-1            
FBADPIX2=            0.0160869 / Fraction of bad pixels on spectro-2            
WAT0_001= 'system=linear'      /                                                
WAT1_001= 'wtype=linear label=Wavelength units=Angstroms' /                     
CRVAL1  =        3.58000000000 / Central wavelength (log10) of first pixel      
CD1_1   =    0.000100000000000 / Log10 dispersion per pixel                     
CRPIX1  =                    1 / Starting pixel (1-indexed)                     
CTYPE1  = 'LINEAR  '           /                                                
DC-FLAG =                    1 / Log-linear flag                                
BUNIT   = '1E-17 erg/cm^2/s/Ang' /                                              
DIMS0   =                   51 / Number of fits per objects                     
DIMS1   =                  640 / Number of objects                              

HDU1

XTENSION= 'BINTABLE'           /Binary table written by MWRFITS v1.4a           
BITPIX  =                    8 /Required value                                  
NAXIS   =                    2 /Required value                                  
NAXIS1  =                  927 /Number of bytes per row                         
NAXIS2  =                32640 /Number of rows                                  
PCOUNT  =                    0 /Normally 0 (no varying arrays)                  
GCOUNT  =                    1 /Required value                                  
TFIELDS =                   49 /Number of columns in table                      
COMMENT                                                                         
COMMENT  *** End of mandatory fields ***                                        
COMMENT                                                                         
*
COMMENT  *** Column names ***                                                   
COMMENT                                                                         
TTYPE1  = 'PLATE   '           /                                                
TTYPE2  = 'TILE    '           /                                                
TTYPE3  = 'MJD     '           /                                                
TTYPE4  = 'FIBERID '           /                                                
TTYPE5  = 'OBJID   '           /                                                
TTYPE6  = 'OBJTYPE '           /                                                
TTYPE7  = 'PLUG_RA '           /                                                
TTYPE8  = 'PLUG_DEC '          /                                                
TTYPE9  = 'CLASS   '           /                                                
TTYPE10 = 'SUBCLASS '          /                                                
TTYPE11 = 'Z       '           /                                                
TTYPE12 = 'Z_ERR   '           /                                                
TTYPE13 = 'RCHI2   '           /                                                
TTYPE14 = 'DOF     '           /                                                
TTYPE15 = 'RCHI2DIFF '         /                                                
TTYPE16 = 'TFILE   '           /                                                
TTYPE17 = 'TCOLUMN '           /                                                
TTYPE18 = 'NPOLY   '           /                                                
TTYPE19 = 'THETA   '           /                                                
TTYPE20 = 'THETA_COVAR '       /                                                
TTYPE21 = 'VDISP   '           /                                                
TTYPE22 = 'VDISP_ERR '         /                                                
TTYPE23 = 'VDISPZ  '           /                                                
TTYPE24 = 'VDISPZ_ERR '        /                                                
TTYPE25 = 'VDISPCHI2 '         /                                                
TTYPE26 = 'VDISPNPIX '         /                                                
TTYPE27 = 'VDISPDOF '          /                                                
TTYPE28 = 'WAVEMIN '           /                                                
TTYPE29 = 'WAVEMAX '           /                                                
TTYPE30 = 'WCOVERAGE '         /                                                
TTYPE31 = 'ZWARNING '          /                                                
TTYPE32 = 'SN_MEDIAN '         /                                                
TTYPE33 = 'CHI68P  '           /                                                
TTYPE34 = 'FRACNSIGMA '        /                                                
TTYPE35 = 'FRACNSIGHI '        /                                                
TTYPE36 = 'FRACNSIGLO '        /                                                
TTYPE37 = 'SPECTROFLUX '       /                                                
TTYPE38 = 'SPECTROFLUX_IVAR '  /                                                
TTYPE39 = 'SPECTROSYNFLUX '    /                                                
TTYPE40 = 'SPECTROSYNFLUX_IVAR ' /                                              
TTYPE41 = 'SPECTROSKYFLUX '    /                                                
TTYPE42 = 'ANYANDMASK '        /                                                
TTYPE43 = 'ANYORMASK '         /                                                
TTYPE44 = 'SPEC1_G '           /                                                
TTYPE45 = 'SPEC1_R '           /                                                
TTYPE46 = 'SPEC1_I '           /                                                
TTYPE47 = 'SPEC2_G '           /                                                
TTYPE48 = 'SPEC2_R '           /                                                
TTYPE49 = 'SPEC2_I '           /                                                
COMMENT                                                                         
COMMENT  *** Column formats ***                                                 
COMMENT                                                                         
TFORM1  = 'J       '           /                                                
TFORM2  = 'J       '           /                                                
TFORM3  = 'J       '           /                                                
TFORM4  = 'J       '           /                                                
TFORM5  = '5J      '           /                                                
TFORM6  = '18A     '           /                                                
TFORM7  = 'D       '           /                                                
TFORM8  = 'D       '           /                                                
TFORM9  = '6A      '           /                                                
TFORM10 = '19A     '           /                                                
TFORM11 = 'E       '           /                                                
TFORM12 = 'E       '           /                                                
TFORM13 = 'E       '           /                                                
TFORM14 = 'J       '           /                                                
TFORM15 = 'E       '           /                                                
TFORM16 = '24A     '           /                                                
TFORM17 = '10J     '           /                                                
TFORM18 = 'J       '           /                                                
TFORM19 = '10E     '           /                                                
TFORM20 = '100E    '           /                                                
TFORM21 = 'E       '           /                                                
TFORM22 = 'E       '           /                                                
TFORM23 = 'E       '           /                                                
TFORM24 = 'E       '           /                                                
TFORM25 = 'E       '           /                                                
TFORM26 = 'E       '           /                                                
TFORM27 = 'J       '           /                                                
TFORM28 = 'E       '           /                                                
TFORM29 = 'E       '           /                                                
TFORM30 = 'E       '           /                                                
TFORM31 = 'J       '           /                                                
TFORM32 = 'E       '           /                                                
TFORM33 = 'E       '           /                                                
TFORM34 = '10E     '           /                                                
TFORM35 = '10E     '           /                                                
TFORM36 = '10E     '           /                                                
TFORM37 = '5E      '           /                                                
TFORM38 = '5E      '           /                                                
TFORM39 = '5E      '           /                                                
TFORM40 = '5E      '           /                                                
TFORM41 = '5E      '           /                                                
TFORM42 = 'J       '           /                                                
TFORM43 = 'J       '           /                                                
TFORM44 = 'E       '           /                                                
TFORM45 = 'E       '           /                                                
TFORM46 = 'E       '           /                                                
TFORM47 = 'E       '           /                                                
TFORM48 = 'E       '           /                                                
TFORM49 = 'E       '           /                                                
COMMENT                                                                         
COMMENT  *** Column dimensions (2 D or greater) ***                             
COMMENT                                                                         
TDIM20  = '( 10, 10)'          /