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FITS file - 2nd extension

The 2nd FITS extension holds a 1x1 arcmin thumbnail image of a SuperCOSMOS scan of the UKST R (IIIaF) survey plate.

Example header:

XTENSION= 'IMAGE   '           / IMAGE extension                                
BITPIX  =                   16 / number of bits per data pixel                  
NAXIS   =                    2 / number of data axes                            
NAXIS1  =                   89 / length of data axis 1                          
NAXIS2  =                   89 / length of data axis 2                          
PCOUNT  =                    0 / required keyword; must = 0                     
GCOUNT  =                    1 / required keyword; must = 1                     
COMMENT   FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT   Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
EXTNAME = 'SSS Rf image'        /                                               
COMMENT   Contact the NASA Science Office of Standards and Technology for the   
COMMENT   FITS Definition document #100 and other FITS information.             
PLATENUM= '15725   '           / Plate number                                   
EMULSION= 'IIIaF   '           / Kodak emulsion type                            
FILTER  = 'OG590   '           / Schott glass filter type                       
PLTSCALE= '67.14   '           / [arcsec/mm] plate scale                        
FIELDNUM= '78      '           / Sky survey field number                        
EPOCH   =         1.993640E+03 / Epoch of observation                           
DATE-OBS= '1993-08-21'         / [yyyy-mm-dd] UT date of observation            
TELESCOP= 'UKST    '           / Telescope on which the plate was taken         
TELETYPE= 'SCHM    '           / Type of telescope                              
SITELAT =  -5.458410576565E-01 / [radians] latitude of telescope                
SITELONG=   2.601766194458E+00 / [radians] longitude of telescope               
LST     = '23:26   '           / [hh:mm] local sidereal time at start of obs    
MJD-OBS =   4.921966757760E+04 / Modified Julian Date of observation            
INSTRUME= 'SuperCOSMOS I'      / Measuring machine                              
DATE-MES= '1998-09-22'         / [yyyy-mm-dd] Date of this plate measurement    
RADECSYS= 'FK5     '           / Reference frame for RA/DEC in original file    
NHKLINES=                  146 / Number of lines from house-keeping file        
HKLIN001= 'JOB.JOBNO                UKR078' /                                   
HKLIN002= 'JOB.DATE-MES             1998:09:22' /                               
HKLIN003= 'JOB.TIME                 12:53:35' /                                 
HKLIN004= 'JOB.INSTRUME             SuperCOSMOS I' /                            
HKLIN005= 'JOB.ORIGIN               Royal Observatory Edinburgh' /              
HKLIN006= 'JOB.SOFTWARE             /home/scosdev/v033' /                       
HKLIN007= 'JOB.OPERATOR             ebt' /                                      
HKLIN008= 'JOB.USER                 htm' /                                      
HKLIN009= 'JOB.USERREF              1' /                                        
HKLIN010= 'JOB.UORIGIN              ROE' /                                      
HKLIN011= 'JOB.UCOUNTRY             uk' /                                       
HKLIN012= 'JOB.COMMENT              An object catalogue of the Southern Sky' /  
HKLIN013= 'JOB.IAM_FILE             iam.srt' /                                  
HKLIN014= 'PLATE.TELESCOP           UKST' /                                     
HKLIN015= 'PLATE.TELTYPE            SCHM' /                                     
HKLIN016= 'PLATE.PLATE              15725' /                                    
HKLIN017= 'PLATE.MATERIAL           3mm glass' /                                
HKLIN018= 'PLATE.EMULSION           IIIaF' /                                    
HKLIN019= 'PLATE.FILTER             OG590' /                                    
HKLIN020= 'PLATE.PSCALE             67.14' /                                    
HKLIN021= 'PLATE.FIELD              78' /                                       
HKLIN022= 'PLATE.RA_PNT             0' /                                        
HKLIN023= 'PLATE.DEC_PNT            -65' /                                      
HKLIN024= 'PLATE.RADECSYS           FK4' /                                      
HKLIN025= 'PLATE.EQUINOX            1950' /                                     
HKLIN026= 'PLATE.TIMESYS            BESSELIAN' /                                
HKLIN027= 'PLATE.EPOCH              1993.64' /                                  
HKLIN028= 'PLATE.EXPOSURE           55' /                                       
HKLIN029= 'PLATE.UTDATE             930821' /                                   
HKLIN030= 'PLATE.LST                2326' /                                     
HKLIN031= 'PLATE.MJD                49219.667577598' /                          
HKLIN032= 'PLATE.TELLAT             -0.54584105765654' /                        
HKLIN033= 'PLATE.TELLONG            2.6017661944583' /                          
HKLIN034= 'PLATE.TELHT              1145' /                                     
HKLIN035= 'PLATE.TEMP               273.155' /                                  
HKLIN036= 'PLATE.ATMOSP             1013.25' /                                  
HKLIN037= 'PLATE.HUMID              0.5' /                                      
HKLIN038= 'PLATE.WAVE               6500' /                                     
HKLIN039= 'PLATE.TROPL              0.0065' /                                   
HKLIN040= 'CALIBRATION.CALTYPE      SPLINE' /                                   
HKLIN041= 'CALIBRATION.STEPWEDG     KPNO' /                                     
HKLIN042= 'CALIBRATION.NSTEPS       16' /                                       
HKLIN043= 'MEASUREMENT.ORIENTAT     news' /                                     
HKLIN044= 'MEASUREMENT.EMULPOS      UP' /                                       
HKLIN045= 'MEASUREMENT.SCANFILT     14' /                                       
HKLIN046= 'MEASUREMENT.SOSP         552' /                                      
HKLIN047= 'MEASUREMENT.STEPSIZE     10' /                                       
HKLIN048= 'MEASUREMENT.SCANLEN      1152' /                                     
HKLIN049= 'MEASUREMENT.A-XMIN       1622000' /                                  
HKLIN050= 'MEASUREMENT.A-YMIN       1622000' /                                  
HKLIN051= 'MEASUREMENT.A-XMAX       33878000' /                                 
HKLIN052= 'MEASUREMENT.A-YMAX       33878000' /                                 
HKLIN053= 'MEASUREMENT.X_PNT        17750000' /                                 
HKLIN054= 'MEASUREMENT.Y_PNT        17750000' /                                 
HKLIN055= 'ANALYSIS.NPARAMS         32' /                                       
HKLIN056= 'ANALYSIS.AREACUT         8' /                                        
HKLIN057= 'ANALYSIS.AP-PARAM        1.07' /                                     
HKLIN058= 'DEBLEND.DB-PARAM         1.05' /                                     
HKLIN059= 'DEBLEND.DB-AMIN          16' /                                       
HKLIN060= 'DEBLEND.DB-AMAX          100000' /                                   
HKLIN061= 'DEBLEND.DB-ACUT          8' /                                        
HKLIN062= 'DEBLEND.DB-LEVEL         16' /                                       
HKLIN063= 'DEBLEND.SELECT           PARENT+CHILD' /                             
HKLIN064= 'SKY.SKYSQUAR             64' /                                       
HKLIN065= 'SKY.SKYDEFN              MEDIAN' /                                   
HKLIN066= 'SKY.SKYFILTR             bdkjunk' /                                  
HKLIN067= 'SKY.F-THRESH             8' /                                        
HKLIN068= 'SKY.F-SCLEN              4' /                                        
HKLIN069= 'THRESHOLDING.PCUT        9.000004' /                                 
HKLIN070= 'IAMQC.AREAMIN            8' /                                        
HKLIN071= 'IAMQC.AREAMAX            149896' /                                   
HKLIN072= 'IAMQC.MINMAG             -31170' /                                   
HKLIN073= 'IAMQC.MAXMAG             -17788' /                                   
HKLIN074= 'IAMQC.MINELL             0.0003601313' /                             
HKLIN075= 'IAMQC.MAXELL             1' /                                        
HKLIN076= 'IAMQC.MODELL             0.09' /                                     
HKLIN077= 'IAMQC.MODOR              36' /                                       
HKLIN078= 'IAMQC.MIDELL             0.26' /                                     
HKLIN079= 'IAMQC.MIDOR              72' /                                       
HKLIN080= 'IAMQC.MEANELL            0.290042' /                                 
HKLIN081= 'IAMQC.MEANOR             79.28329' /                                 
HKLIN082= 'IAMQC.NUMOBJ             436741' /                                   
HKLIN083= 'IAMQC.PARENTS            391382' /                                   
HKLIN084= 'IAMQC.RANGING            TRUE' /                                     
HKLIN085= 'IAMQC.LANE_1             15484' /                                    
HKLIN086= 'IAMQC.LANE_2             29416' /                                    
HKLIN087= 'IAMQC.LANE_3             44447' /                                    
HKLIN088= 'IAMQC.LANE_4             60078' /                                    
HKLIN089= 'IAMQC.LANE_5             76372' /                                    
HKLIN090= 'IAMQC.LANE_6             93600' /                                    
HKLIN091= 'IAMQC.LANE_7             109850' /                                   
HKLIN092= 'IAMQC.LANE_8             126320' /                                   
HKLIN093= 'IAMQC.LANE_9             142373' /                                   
HKLIN094= 'IAMQC.LANE_10            157950' /                                   
HKLIN095= 'IAMQC.LANE_11            173737' /                                   
HKLIN096= 'IAMQC.LANE_12            189231' /                                   
HKLIN097= 'IAMQC.LANE_13            204340' /                                   
HKLIN098= 'IAMQC.LANE_14            219920' /                                   
HKLIN099= 'IAMQC.LANE_15            236103' /                                   
HKLIN100= 'IAMQC.LANE_16            251725' /                                   
HKLIN101= 'IAMQC.LANE_17            268196' /                                   
HKLIN102= 'IAMQC.LANE_18            283098' /                                   
HKLIN103= 'IAMQC.LANE_19            299660' /                                   
HKLIN104= 'IAMQC.LANE_20            315545' /                                   
HKLIN105= 'IAMQC.LANE_21            331878' /                                   
HKLIN106= 'IAMQC.LANE_22            347999' /                                   
HKLIN107= 'IAMQC.LANE_23            363776' /                                   
HKLIN108= 'IAMQC.LANE_24            379246' /                                   
HKLIN109= 'IAMQC.LANE_25            393453' /                                   
HKLIN110= 'IAMQC.LANE_26            407624' /                                   
HKLIN111= 'IAMQC.LANE_27            422416' /                                   
HKLIN112= 'IAMQC.LANE_28            436741' /                                   
HKLIN113= 'XYTORADEC.STARCAT        /sdata/scos/refcats/tycho2.FIT' /           
HKLIN114= 'XYTORADEC.BRIGHTLIM      9' /                                        
HKLIN115= 'XYTORADEC.C-EQUIN        2000' /                                     
HKLIN116= 'XYTORADEC.C-EQTSYS       JULIAN' /                                   
HKLIN117= 'XYTORADEC.C-EPOCH        2000' /                                     
HKLIN118= 'XYTORADEC.C-EPTSYS       JULIAN' /                                   
HKLIN119= 'XYTORADEC.R-EQUIN        2000' /                                     
HKLIN120= 'XYTORADEC.R-TSYS         JULIAN' /                                   
HKLIN121= 'XYTORADEC.MAXITER        500' /                                      
HKLIN122= 'XYTORADEC.RCRITINI       500000' /                                   
HKLIN123= 'XYTORADEC.RCRITABS       40000' /                                    
HKLIN124= 'XYTORADEC.RCRITREL       1' /                                        
HKLIN125= 'XYTORADEC.RCRITFIN       2.5' /                                      
HKLIN126= 'XYTORADEC.HARDCOPY       /scos1/scos/UKR078/UKR078.ps' /             
HKLIN127= 'XYTORADEC.REFSMULT       5' /                                        
HKLIN128= 'XYTORADEC.RESDMULT       1000' /                                     
HKLIN129= 'XYTORADEC.RACOL          RA' /                                       
HKLIN130= 'XYTORADEC.DECOL          DEC' /                                      
HKLIN131= 'XYTORADEC.RAPMCOL        PMRA' /                                     
HKLIN132= 'XYTORADEC.DECPMCOL       PMDE' /                                     
HKLIN133= 'XYTORADEC.PLXCOL         NONE' /                                     
HKLIN134= 'XYTORADEC.RVCOL          NONE' /                                     
HKLIN135= 'XYTORADEC.MAGCOL         VT' /                                       
HKLIN136= 'XYTORADEC.STARSC         1592' /                                     
HKLIN137= 'XYTORADEC.STARSU         904' /                                      
HKLIN138= 'XYTORADEC.COEFFS_1       17.747762827294' /                          
HKLIN139= 'XYTORADEC.COEFFS_2       -307.28370121363' /                         
HKLIN140= 'XYTORADEC.COEFFS_3       -0.69789289084208' /                        
HKLIN141= 'XYTORADEC.COEFFS_4       17.863339523719' /                          
HKLIN142= 'XYTORADEC.COEFFS_5       -0.69744515037203' /                        
HKLIN143= 'XYTORADEC.COEFFS_6       307.28703360632' /                          
HKLIN144= 'XYTORADEC.DISTR          -0.33333333333333' /                        
HKLIN145= 'XYTORADEC.RA_PNT         0.010227380632444' /                        
HKLIN146= 'XYTORADEC.DEC_PNT        -1.130246764944' /                          
HISTORY = 'SuperCOSMOS image analysis and mapping mode (IAM and MM)' /          
HISTORY = 'data written by xydcomp_ss.' /                                       
HISTORY = 'Any questions/comments/suggestions/bug reports should be sent' /     
ASTSIGX =         1.200000E-01 / [arcsec] std. dev. of astrometric fit in X     
ASTSIGY =         1.000000E-01 / [arcsec] std. dev. of astrometric fit in Y     
CRVAL1  =   4.029153806919E-02 / Axis 1 reference value                         
CRPIX1  =   4.463364577738E+01 / Axis 1 pixel value                             
CTYPE1  = 'RA---TAN'           / Quantity represented by axis 1                 
CRVAL2  =  -6.359374993181E+01 / Axis 2 reference value                         
CRPIX2  =   4.440882625791E+01 / Axis 2 pixel value                             
CTYPE2  = 'DEC--TAN'           / Quantity represented by axis 2                 
CD1_1   =  -1.864504631066E-04 / Co-ordinate transformation matrix              
CD1_2   =   1.382214957016E-06 / Co-ordinate transformation matrix              
CD2_1   =   1.407649006640E-06 / Co-ordinate transformation matrix              
CD2_2   =   1.865128827768E-04 / Co-ordinate transformation matrix              
CDELT1  =  -1.864555864297E-04 / DEPRECATED - Increment per pixel on axis 1     
CDELT2  =   1.865181946016E-04 / DEPRECATED - Increment per pixel on axis 2     
PC001001=   9.999725225550E-01 / DEPRECATED - Axis rotation matrix              
PC001002=  -7.413105627367E-03 / DEPRECATED - Axis rotation matrix              
PC002001=   7.546979583664E-03 / DEPRECATED - Axis rotation matrix              
PC002002=   9.999715211441E-01 / DEPRECATED - Axis rotation matrix              
CROTA2  =   3.595714198229E+02 / DEPRECATED - rotation of axis 2                
EQUINOX =         2.000000E+03 / Julian reference frame equinox                 
DATATYPE= 'INTEGER*2'          / Type of data                                   
DATUNITS= 'DENSITY '           / Units: transmission, density or intensity      
XPIXELSZ=   9.997703000000E+00 / [microns] X pixel size                         
YPIXELSZ=   1.000000000000E+01 / [microns] Y pixel size                         
OBJCTRA = '  0  0  9.670'      / Centre Right Ascension (J2000)                 
OBJCTDEC= '-63 35 37.50'       / Centre Declination (J2000)                     
OBJCTX  =   1.757963364578E+04 / [pixels] Centre X on plate                     
OBJCTY  =   2.235640882626E+04 / [pixels] Centre Y on plate                     
END                                                                            



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26/8/2008