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Wisconsin Ultraviolet Photo-Polarimeter Experiment (WUPPE)
Level 0 ZOOM Camera Image Data FITS files
February 23, 1994

1.0 Description of the Instrument

The Wisconsin Ultraviolet Photo-Polarimeter Experiment (WUPPE) was one of three ultraviolet telescopes on the ASTRO-1 payload which flew aboard the space shuttle Columbia during a nine day mission in December 1990 (December 2 through December 11). WUPPE is a 0.5m f/10 Cassegrain telescope and spectropolarimeter. It obtained simultaneous spectra and polarization measurements, with a spectral resolution of about 10A, from 1400 to 3200A. A set of halfwave plates at 6 different angles provided spectropolarimetric modulation with 10A resolution on point sources through apertures from 6 to 40 arcsec. A "Lyot" analyzer is used to provide 50-100A spectropolarimetric resolution on faint point targets and diffuse nebulae. The typical diffuse object aperture was 3x50 arcsec.

2.0 WUPPE1 Level 0 Zero Order Detector (ZOD) (ASTRO 1-01C):

Field identification, offsetting, focussing, and pointing trim were accomplished by relaying the zero-order image of the Wisconsin Ultraviolet Photo Polarimeter Experiment (WUPPE) spectrometer grating to a blue-sensitive zero-order detector (ZOD) camera. The ZOD was an intensified RCA 320x512 two-dimensional CCD array. The intensifier was an ITT 18 mm proximity-focussed channel intensifier with P-20 phosphor, quartz faceplate, and S-20 photocathode for blue-sensitivity. The array was uncooled and typically read out every second. There are three types of ZOD data; field, zoom and downfield images. No calibrations have been applied to the ZOD images and thus it is Level 0 data. The individual ZOD images are archived in FITS format. The field mode was used for identification and acquisition of the targets. Its size was 3.3 x 4.4 arcmin, 320 x 256 pixels using a 1-bit display. The zoom mode was used for fine pointing and focus. The size of the zoom image was 24 x 32 arcsec, 30 x 40 pixels using a 6-bit grey scale display. The downfield data is similar to the field data except it used the 6-bit grey scale display and was used to produce a more detailed picture of the field around the object of interest.

The ZOOM camera data were provided to the NSSDC in FITS files ordered by Object-ID and by Mission Elapsed Time (MET) day number. The ZOOM images by MET day number contain the entire dataset acquired during the Astro 1 mission. Each 12 hour time slice of data contains hundreds to thousands of zoom camera images. The ZOOM dataset, ordered by Object-ID, includes only the raw ZOOM images taken during observations of science targets.

3.0 WUPPE ZOOM Camera Data FITS File naming convention

There are 10 WUPPE raw zoom camera images in one level 0 raw zoom camera data FITS file (both by Object ID and by MET day number).

3.1 ZOOM FITS file names by Object ID

The files are named as follows:

WUPPE1_OBJECTID_PPPPPP_ZM_nnnn.FITS

where,

OBJECTID = The Mission Target List name. The names are common to the HUT, UIT and WUPPE instruments. The number of characters in OBJECT can vary from 3 to 8 characters. May be a mix of numbers and/or alphabetic information. May contain imbedded '-'s.

PPPPPP = The POINTING_ID is a 6 digit number representing the object identification number which was assigned during the ASTRO1 mission. Each shuttle pointing had a unique POINTING_ID number. There may be several pointings of a single object.

ZM = Denotes Level 0 ZOD ZOOM camera data.

nnnn = Starting ZOOM image number.

For example, FITS file "WUPPE1_BD284211_001014_ZM_0001.FITS" contains raw zoom images 1 through 10 that pertain to the 001014 observation of BD+284211. File "WUPPE1_BD284211_001014_ZM_0011.FITS" contains raw scans 11 through 20.

3.2 WUPPE ZOOM FITS file names by MET Day Number

FITS file name = WUPPE1_DAYyz_ZM_nnnn.FITS

where,

DAYyz = The mission elapsed time (MET) day number times 10 (eg. 00, 05, 10,... 80). Files are grouped into 12-hour periods for each DAYyz (MET time of y.z).

ZM = Denotes Level 0 ZOD ZOOM camera data.

nnnn = Starting ZOOM image number.

For example, FITS file "WUPPE1_DAY05_ZM_0001.FITS" contains raw images 1 through 10 from day 0.5. "WUPPE1_DAY05_ZM_0011.FITS" contains raw images 11 through 20 from day 0.5.

4.0 Description of WUPPE ZOOM Camera FITS files

The FITS files were written on a digital DECstation 5000/240 using DEC FORTRAN for Ultrix RISC Systems, running Ultrix 4.2 at the University of Wisconsin. The FITSIO package, version 3.2, written by William Pence at the Goddard Spaceflight Center, was used to generate the FITS files.

Each ZOOM FITS file is 40320 bytes in length (79 VMS blocks).

The set of basic header information includes the primary array keywords and keywords describing the instrument and data arrays and 12 keywords describing the telescope observational and engineering data for each of the 10 raw zoom camera images in the FITS file.

An example header of a FITS file is given below.

Each zoom image consists of 40x30 integer*2 words. The FITS file then contains 40x30x10 integer*2 words. If there were not enough zoom images to complete a 10 image FITS file, zero-filled data (a FILLER image) were written to the FITS file. In addition, if the data in the original 12 hour time slice file were so badly corrupted as to be unreadable, a FILLER image was written in its place.

See section 6.3 for (WUPPE1_DAY55_ZM_0201.FITS) an example of a file with FILLER images.

5.0 Software

The program "zoomfitsread.f" was written to verify the contents of the Level 0 Zoom Camera Image FITS files. It also uses the GSFC FITSIO software package. This program, along with other WUPPE1 fortran programs, is available from NDADS. IRAF (on a VMS machine) was also used to verify the Zoom Camera Image FITS files.

6.0 Sample FITS ZOOM File Headers

6.1 ZOOM FITS File Header by Object ID

(File name = WUPPE1_PSI-VEL_240910_ZM_0001.FITS )

SIMPLE  =                    T / file does conform to FITS standard             
BITPIX  =                   16 / number of bits per data pixel                  
NAXIS   =                    3 / number of data axes                            
NAXIS1  =                   40 / length of data axis   1                        
NAXIS2  =                   30 / length of data axis   2                        
NAXIS3  =                   10 / length of data axis   3                        
COMMENT   Each zoom image has 40x30 data points                                 
COMMENT   There are 10 zoom images in each FITS file                            
CTYPE1  = 'Pixel   '           / Pixel Number                                   
CRPIX1  =                  1.0 / Reference pixel location                     
CRVAL1  =                  1.0 / Reference pixel coordinate value             
CDELT1  =                  1.0 / Delta pixel number                             
CTYPE2  = 'Row     '           / Row Number                                     
CRPIX2  =                  1.0 / Reference row location                        
CRVAL2  =                  1.0 / Reference row coordinate value                
CDELT2  =                  1.0 / Delta row number                               
CTYPE3  = 'Image No.'          / Zoom Image Number                              
CRPIX3  =                  1.0 / Reference image location                      
CRVAL3  =                  1.0 / Starting image number = ZOOM01                 
CDELT3  =                  1.0 / Delta image number                             
ORIGIN  = 'UW-Space Astronomy Lab' / Creator of FITS file                       
DATE    = 'Thu Mar 11 16:19:52 1993' / Date FITS file was created               
OBSERVAT= 'ASTRO-1 '           / Observatory                                    
TELESCOP= 'WUPPE   '           / Telescope                                      
INSTRUME= 'SPECTROPOLARIMETER' / Instrument Used                                
OBJECT  = 'PSI-VEL '           / Object Observed                                
ID      = '2409-10 '           / Target ID                                      
PRIME   = 'WUPPE   '           / Prime Instrument                               
EQUINOX =              1950.00 / Equinox for coordinates                        
RA      =             142.1821 / Right ascension in degrees                     
DEC     =             -40.2470 / Declination in degrees                         
GMTSTART= '342/23:20:22'       / GMT start time of observation                  
GMTSTOP = '342/23:37:06'       / GMT stop time of observation                   
METSTART= '6/16:31:21'         / Mission Elapsed Time start time                
METSTOP = '6/16:48:05'         / Mission Elapsed Time stop time                 
ZOOM01  =                    1 / Zoom Image Number                              
CURSEQ01=                  137 / Current Sequence Number                        
STATUS01= '7: OBS  '           / Instrument Status Mode                         
APER01  =                    1 / Aperture                                       
FILT01  =                    6 / Filter                                         
GMTTIM01= '342/23:20:27'       / GMT time of data readout                       
METTIM01= '6/16:31:26'         / MET time of data readout                       
SAT01   =                 10.0 / %Saturation                                    
BOS01   =                  4.7 / Bright Object Sensor reading                   
MAXCTS01=                   13 / Maximum counts in Zoom Image                   
QUAL01  =                    0 / SLDPF Quality Flag (max)                       
IMAGE01 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM02  =                    2 / Zoom Image Number                              
CURSEQ02=                  137 / Current Sequence Number                        
STATUS02= '7: OBS  '           / Instrument Status Mode                         
APER02  =                    1 / Aperture                                       
FILT02  =                    6 / Filter                                         
GMTTIM02= '342/23:20:36'       / GMT time of data readout                       
METTIM02= '6/16:31:35'         / MET time of data readout                       
SAT02   =                 10.0 / %Saturation                                    
BOS02   =                  4.7 / Bright Object Sensor reading                   
MAXCTS02=                   12 / Maximum counts in Zoom Image                   
QUAL02  =                    0 / SLDPF Quality Flag (max)                       
IMAGE02 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM03  =                    3 / Zoom Image Number                              
CURSEQ03=                  137 / Current Sequence Number                        
STATUS03= '7: OBS  '           / Instrument Status Mode                         
APER03  =                    1 / Aperture                                       
FILT03  =                    7 / Filter                                         
GMTTIM03= '342/23:20:44'       / GMT time of data readout                       
METTIM03= '6/16:31:43'         / MET time of data readout                       
SAT03   =                 10.0 / %Saturation                                    
BOS03   =                  4.7 / Bright Object Sensor reading                   
MAXCTS03=                   13 / Maximum counts in Zoom Image                   
QUAL03  =                    0 / SLDPF Quality Flag (max)                       
IMAGE03 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM04  =                    4 / Zoom Image Number                              
CURSEQ04=                  137 / Current Sequence Number                        
STATUS04= '7: OBS  '           / Instrument Status Mode                         
APER04  =                    1 / Aperture                                       
FILT04  =                    7 / Filter                                         
GMTTIM04= '342/23:20:52'       / GMT time of data readout                       
METTIM04= '6/16:31:51'         / MET time of data readout                       
SAT04   =                 10.0 / %Saturation                                    
BOS04   =                  4.7 / Bright Object Sensor reading                   
MAXCTS04=                   12 / Maximum counts in Zoom Image                   
QUAL04  =                    0 / SLDPF Quality Flag (max)                       
IMAGE04 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM05  =                    5 / Zoom Image Number                              
CURSEQ05=                  137 / Current Sequence Number                        
STATUS05= '7: OBS  '           / Instrument Status Mode                         
APER05  =                    1 / Aperture                                       
FILT05  =                    6 / Filter                                         
GMTTIM05= '342/23:21: 0'       / GMT time of data readout                       
METTIM05= '6/16:31:59'         / MET time of data readout                       
SAT05   =                 10.0 / %Saturation                                    
BOS05   =                  4.5 / Bright Object Sensor reading                   
MAXCTS05=                   12 / Maximum counts in Zoom Image                   
QUAL05  =                    0 / SLDPF Quality Flag (max)                       
IMAGE05 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM06  =                    6 / Zoom Image Number                              
CURSEQ06=                  137 / Current Sequence Number                        
STATUS06= '7: OBS  '           / Instrument Status Mode                         
APER06  =                    1 / Aperture                                       
FILT06  =                    6 / Filter                                         
GMTTIM06= '342/23:21: 8'       / GMT time of data readout                       
METTIM06= '6/16:32: 7'         / MET time of data readout                       
SAT06   =                 10.0 / %Saturation                                    
BOS06   =                  4.5 / Bright Object Sensor reading                   
MAXCTS06=                   12 / Maximum counts in Zoom Image                   
QUAL06  =                    0 / SLDPF Quality Flag (max)                       
IMAGE06 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM07  =                    7 / Zoom Image Number                              
CURSEQ07=                  137 / Current Sequence Number                        
STATUS07= '7: OBS  '           / Instrument Status Mode                         
APER07  =                    1 / Aperture                                       
FILT07  =                    7 / Filter                                         
GMTTIM07= '342/23:21:17'       / GMT time of data readout                       
METTIM07= '6/16:32:16'         / MET time of data readout                       
SAT07   =                 10.0 / %Saturation                                    
BOS07   =                  4.7 / Bright Object Sensor reading                   
MAXCTS07=                   13 / Maximum counts in Zoom Image                   
QUAL07  =                    0 / SLDPF Quality Flag (max)                       
IMAGE07 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM08  =                    8 / Zoom Image Number                              
CURSEQ08=                  137 / Current Sequence Number                        
STATUS08= '7: OBS  '           / Instrument Status Mode                         
APER08  =                    1 / Aperture                                       
FILT08  =                    7 / Filter                                         
GMTTIM08= '342/23:21:25'       / GMT time of data readout                       
METTIM08= '6/16:32:24'         / MET time of data readout                       
SAT08   =                 10.0 / %Saturation                                    
BOS08   =                  4.5 / Bright Object Sensor reading                   
MAXCTS08=                   12 / Maximum counts in Zoom Image                   
QUAL08  =                    0 / SLDPF Quality Flag (max)                       
IMAGE08 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM09  =                    9 / Zoom Image Number                              
CURSEQ09=                  137 / Current Sequence Number                        
STATUS09= '7: OBS  '           / Instrument Status Mode                         
APER09  =                    1 / Aperture                                       
FILT09  =                    7 / Filter                                         
GMTTIM09= '342/23:21:33'       / GMT time of data readout                       
METTIM09= '6/16:32:32'         / MET time of data readout                       
SAT09   =                 10.0 / %Saturation                                    
BOS09   =                  4.5 / Bright Object Sensor reading                   
MAXCTS09=                   13 / Maximum counts in Zoom Image                   
QUAL09  =                    0 / SLDPF Quality Flag (max)                       
IMAGE09 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM10  =                   10 / Zoom Image Number                              
CURSEQ10=                  137 / Current Sequence Number                        
STATUS10= '7: OBS  '           / Instrument Status Mode                         
APER10  =                    1 / Aperture                                       
FILT10  =                    6 / Filter                                         
GMTTIM10= '342/23:21:41'       / GMT time of data readout                       
METTIM10= '6/16:32:40'         / MET time of data readout                       
SAT10   =                 10.0 / %Saturation                                    
BOS10   =                  4.5 / Bright Object Sensor reading                   
MAXCTS10=                   12 / Maximum counts in Zoom Image                   
QUAL10  =                    0 / SLDPF Quality Flag (max)                       
IMAGE10 = 'ZOOM IMAGE'         / Zoom Image                                     
END                                                                            

6.2 ZOOM FITS File Header by MET Day Number

WUPPE1_DAY55_ZM_0191.FITS

SIMPLE  =                    T / file does conform to FITS standard             
BITPIX  =                   16 / number of bits per data pixel                  
NAXIS   =                    3 / number of data axes                            
NAXIS1  =                   40 / length of data axis   1                        
NAXIS2  =                   30 / length of data axis   2                        
NAXIS3  =                   10 / length of data axis   3                        
COMMENT   Each zoom image has 40x30 data points                                 
COMMENT   There are 10 zoom images in each FITS file                            
CTYPE1  = 'Pixel   '           / Pixel Number                                   
CRPIX1  =                  1.0 / Reference pixel location                       
CRVAL1  =                  1.0 / Reference pixel coordinate value              
CDELT1  =                  1.0 / Delta pixel number                             
CTYPE2  = 'Row     '           / Row Number                                     
CRPIX2  =                  1.0 / Reference row location                        
CRVAL2  =                  1.0 / Reference row coordinate value                 
CDELT2  =                  1.0 / Delta row number                               
CTYPE3  = 'Image No.'          / Zoom Image Number                              
CRPIX3  =                  1.0 / Reference zoom image location number           
CRVAL3  =                191.0 / Starting zoom image number = ZOOM01            
CDELT3  =                  1.0 / Delta image number                             
ORIGIN  = 'UW-Space Astronomy Lab' / Creator of FITS file                       
DATE    = 'Fri Jan 29 13:58:39 1993' / Date FITS file was created               
OBSERVAT= 'ASTRO-1 '           / Observatory                                    
TELESCOP= 'WUPPE   '           / Telescope                                      
INSTRUME= 'SPECTROPOLARIMETER' / Instrument Used                                
ZOOM01  =                  191 / Zoom Image Number                              
CURSEQ01=                  375 / Current Sequence Number                        
STATUS01= '7: OBS  '           / Instrument Status Mode                         
APER01  =                    7 / Aperture                                       
FILT01  =                    4 / Filter                                         
GMTTIM01= '341/20:46:43'       / GMT time of data readout                       
METTIM01= '5/13:57:42'         / MET time of data readout                       
SAT01   =                 29.0 / %Saturation                                    
BOS01   =                  8.2 / Bright Object Sensor reading                   
MAXCTS01=                   20 / Maximum counts in Zoom Image                   
QUAL01  =                    0 / SLDPF Quality Flag (max)                       
IMAGE01 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM02  =                  192 / Zoom Image Number                              
CURSEQ02=                  375 / Current Sequence Number                        
STATUS02= '7: OBS  '           / Instrument Status Mode                         
APER02  =                    7 / Aperture                                       
FILT02  =                    4 / Filter                                         
GMTTIM02= '341/20:46:51'       / GMT time of data readout                       
METTIM02= '5/13:57:50'         / MET time of data readout                       
SAT02   =                 29.0 / %Saturation                                    
BOS02   =                  8.2 / Bright Object Sensor reading                   
MAXCTS02=                   21 / Maximum counts in Zoom Image                   
QUAL02  =                    0 / SLDPF Quality Flag (max)                       
IMAGE02 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM03  =                  193 / Zoom Image Number                              
CURSEQ03=                  375 / Current Sequence Number                        
STATUS03= '7: OBS  '           / Instrument Status Mode                         
APER03  =                    7 / Aperture                                       
FILT03  =                    4 / Filter                                         
GMTTIM03= '341/20:46:59'       / GMT time of data readout                       
METTIM03= '5/13:57:58'         / MET time of data readout                       
SAT03   =                 29.0 / %Saturation                                    
BOS03   =                  8.2 / Bright Object Sensor reading                   
MAXCTS03=                   22 / Maximum counts in Zoom Image                   
QUAL03  =                    0 / SLDPF Quality Flag (max)                       
IMAGE03 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM04  =                  194 / Zoom Image Number                              
CURSEQ04=                  375 / Current Sequence Number                        
STATUS04= '7: OBS  '           / Instrument Status Mode                         
APER04  =                    7 / Aperture                                       
FILT04  =                    4 / Filter                                         
GMTTIM04= '341/20:47: 7'       / GMT time of data readout                       
METTIM04= '5/13:58: 6'         / MET time of data readout                       
SAT04   =                 29.0 / %Saturation                                    
BOS04   =                  8.2 / Bright Object Sensor reading                   
MAXCTS04=                   21 / Maximum counts in Zoom Image                   
QUAL04  =                    0 / SLDPF Quality Flag (max)                       
IMAGE04 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM05  =                  195 / Zoom Image Number                              
CURSEQ05=                  375 / Current Sequence Number                        
STATUS05= '7: OBS  '           / Instrument Status Mode                         
APER05  =                    7 / Aperture                                       
FILT05  =                    4 / Filter                                         
GMTTIM05= '341/20:47:16'       / GMT time of data readout                       
METTIM05= '5/13:58:15'         / MET time of data readout                       
SAT05   =                 29.0 / %Saturation                                    
BOS05   =                  8.2 / Bright Object Sensor reading                   
MAXCTS05=                   21 / Maximum counts in Zoom Image                   
QUAL05  =                    0 / SLDPF Quality Flag (max)                       
IMAGE05 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM06  =                  196 / Zoom Image Number                              
CURSEQ06=                  375 / Current Sequence Number                        
STATUS06= '7: OBS  '           / Instrument Status Mode                         
APER06  =                    7 / Aperture                                       
FILT06  =                    4 / Filter                                         
GMTTIM06= '341/20:47:24'       / GMT time of data readout                       
METTIM06= '5/13:58:23'         / MET time of data readout                       
SAT06   =                 29.0 / %Saturation                                    
BOS06   =                  8.0 / Bright Object Sensor reading                   
MAXCTS06=                   19 / Maximum counts in Zoom Image                   
QUAL06  =                    0 / SLDPF Quality Flag (max)                       
IMAGE06 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM07  =                  197 / Zoom Image Number                              
CURSEQ07=                  375 / Current Sequence Number                        
STATUS07= '7: OBS  '           / Instrument Status Mode                         
APER07  =                    7 / Aperture                                       
FILT07  =                    4 / Filter                                         
GMTTIM07= '341/20:47:32'       / GMT time of data readout                       
METTIM07= '5/13:58:31'         / MET time of data readout                       
SAT07   =                 29.0 / %Saturation                                    
BOS07   =                  8.0 / Bright Object Sensor reading                   
MAXCTS07=                   20 / Maximum counts in Zoom Image                   
QUAL07  =                    0 / SLDPF Quality Flag (max)                       
IMAGE07 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM08  =                  198 / Zoom Image Number                              
CURSEQ08=                  375 / Current Sequence Number                        
STATUS08= '7: OBS  '           / Instrument Status Mode                         
APER08  =                    7 / Aperture                                       
FILT08  =                    4 / Filter                                         
GMTTIM08= '341/20:47:40'       / GMT time of data readout                       
METTIM08= '5/13:58:39'         / MET time of data readout                       
SAT08   =                 29.0 / %Saturation                                    
BOS08   =                  7.9 / Bright Object Sensor reading                   
MAXCTS08=                   22 / Maximum counts in Zoom Image                   
QUAL08  =                    0 / SLDPF Quality Flag (max)                       
IMAGE08 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM09  =                  199 / Zoom Image Number                              
CURSEQ09=                  375 / Current Sequence Number                        
STATUS09= '7: OBS  '           / Instrument Status Mode                         
APER09  =                    7 / Aperture                                       
FILT09  =                    4 / Filter                                         
GMTTIM09= '341/20:47:48'       / GMT time of data readout                       
METTIM09= '5/13:58:47'         / MET time of data readout                       
SAT09   =                 29.0 / %Saturation                                    
BOS09   =                  8.0 / Bright Object Sensor reading                   
MAXCTS09=                   21 / Maximum counts in Zoom Image                   
QUAL09  =                    0 / SLDPF Quality Flag (max)                       
IMAGE09 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM10  =                  200 / Zoom Image Number                              
CURSEQ10=                  375 / Current Sequence Number                        
STATUS10= '7: OBS  '           / Instrument Status Mode                         
APER10  =                    7 / Aperture                                       
FILT10  =                    4 / Filter                                         
GMTTIM10= '341/20:47:56'       / GMT time of data readout                       
METTIM10= '5/13:58:55'         / MET time of data readout                       
SAT10   =                 29.0 / %Saturation                                    
BOS10   =                  7.9 / Bright Object Sensor reading                   
MAXCTS10=                   23 / Maximum counts in Zoom Image                   
QUAL10  =                    0 / SLDPF Quality Flag (max)                       
IMAGE10 = 'ZOOM IMAGE'         / Zoom Image                                     
END 

6.3 ZOOM Image with "Filler" images.

FITS file = WUPPE1_DAY55_ZM_0201.FITS

(Note that the last 2 zoom images in the file are filler images. Abbreviated header, to save space)

SIMPLE  =                    T / file does conform to FITS standard             
BITPIX  =                   16 / number of bits per data pixel                  
NAXIS   =                    3 / number of data axes                            
NAXIS1  =                   40 / length of data axis   1                        
NAXIS2  =                   30 / length of data axis   2                        
NAXIS3  =                   10 / length of data axis   3                        
COMMENT   Each zoom image has 40x30 data points                                 
COMMENT   There are 10 zoom images in each FITS file                            
CTYPE1  = 'Pixel   '           / Pixel Number                                   
CRPIX1  =                  1.0 / Reference pixel location                       
CRVAL1  =                  1.0 / Reference pixel coordinate value              
CDELT1  =                  1.0 / Delta pixel number                             
CTYPE2  = 'Row     '           / Row Number                                     
CRPIX2  =                  1.0 / Reference row location                        
CRVAL2  =                  1.0 / Reference row coordinate value                 
CDELT2  =                  1.0 / Delta row number                               
CTYPE3  = 'Image No.'          / Zoom Image Number                              
CRPIX3  =                  1.0 / Starting image number                          
CRVAL3  =                  1.0 / Starting image value                           
CRPIX3  =                  1.0 / Reference zoom image location number           
CRVAL3  =                201.0 / Starting zoom image number = ZOOM01            
CDELT3  =                  1.0 / Delta image number                             
ORIGIN  = 'UW-Space Astronomy Lab' / Creator of FITS file                       
DATE    = 'Fri Jan 29 13:58:39 1993' / Date FITS file was created               
OBSERVAT= 'ASTRO-1 '           / Observatory                                    
TELESCOP= 'WUPPE   '           / Telescope                                      
INSTRUME= 'SPECTROPOLARIMETER' / Instrument Used                                
ZOOM01  =                  201 / Zoom Image Number                              
CURSEQ01=                  375 / Current Sequence Number                        
STATUS01= '7: OBS  '           / Instrument Status Mode                         
APER01  =                    7 / Aperture                                       
FILT01  =                    4 / Filter                                         
GMTTIM01= '341/20:48: 5'       / GMT time of data readout                       
METTIM01= '5/13:59: 4'         / MET time of data readout                       
SAT01   =                 29.0 / %Saturation                                    
BOS01   =                  7.9 / Bright Object Sensor reading                   
MAXCTS01=                   29 / Maximum counts in Zoom Image                   
QUAL01  =                    0 / SLDPF Quality Flag (max)                       
IMAGE01 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM02  =                  202 / Zoom Image Number                              
CURSEQ02=                  375 / Current Sequence Number                        
STATUS02= '7: OBS  '           / Instrument Status Mode                         
APER02  =                    7 / Aperture                                       
FILT02  =                    4 / Filter                                         
GMTTIM02= '341/20:48:13'       / GMT time of data readout                       
METTIM02= '5/13:59:12'         / MET time of data readout                       
SAT02   =                 29.0 / %Saturation                                    
BOS02   =                  7.9 / Bright Object Sensor reading                   
MAXCTS02=                   18 / Maximum counts in Zoom Image                   
QUAL02  =                    0 / SLDPF Quality Flag (max)                       
IMAGE02 = 'ZOOM IMAGE'         / Zoom Image                                     
    .
    .
    .
ZOOM08  =                  208 / Zoom Image Number                              
CURSEQ08=                  375 / Current Sequence Number                        
STATUS08= '7: OBS  '           / Instrument Status Mode                         
APER08  =                    7 / Aperture                                       
FILT08  =                    4 / Filter                                         
GMTTIM08= '341/20:49: 2'       / GMT time of data readout                       
METTIM08= '5/14: 0: 1'         / MET time of data readout                       
SAT08   =                 29.0 / %Saturation                                    
BOS08   =                  8.2 / Bright Object Sensor reading                   
MAXCTS08=                   20 / Maximum counts in Zoom Image                   
QUAL08  =                    0 / SLDPF Quality Flag (max)                       
IMAGE08 = 'ZOOM IMAGE'         / Zoom Image                                     
ZOOM09  =                  209 / Zoom Image Number                              
CURSEQ09=                    0 / Current Sequence Number                        
STATUS09= '0:      '           / Instrument Status Mode                         
APER09  =                    0 / Aperture                                       
FILT09  =                    0 / Filter                                         
GMTTIM09= '0/ 0: 0: 0'         / GMT time of data readout                       
METTIM09= '0/ 0: 0: 0'         / MET time of data readout                       
SAT09   =                  0.0 / %Saturation                                    
BOS09   =                  0.0 / Bright Object Sensor reading                   
MAXCTS09=                    0 / Maximum counts in Zoom Image                   
QUAL09  =                    0 / SLDPF Quality Flag (max)                       
IMAGE09 = 'FILLER IMAGE'       / Zero-Filled Zoom Image                         
ZOOM10  =                  210 / Zoom Image Number                              
CURSEQ10=                    0 / Current Sequence Number                        
STATUS10= '0:      '           / Instrument Status Mode                         
APER10  =                    0 / Aperture                                       
FILT10  =                    0 / Filter                                         
GMTTIM10= '0/ 0: 0: 0'         / GMT time of data readout                       
METTIM10= '0/ 0: 0: 0'         / MET time of data readout                       
SAT10   =                  0.0 / %Saturation                                    
BOS10   =                  0.0 / Bright Object Sensor reading                   
MAXCTS10=                    0 / Maximum counts in Zoom Image                   
QUAL10  =                    0 / SLDPF Quality Flag (max)                       
IMAGE10 = 'FILLER IMAGE'       / Zero-Filled Zoom Image                         
END

7.0 Further Information

For further assistance, please send mail to archive@stsci.edu

or contact

Ms. Marilyn Meade
UW Space Astronomy Laboratory
Chamberlin Hall
1150 University Avenue
Madison, WI 53706
Phone (608) 263-4678
meade@sal.wisc.edu

The information on this page came from the WUPPE project via the Astrophysics Data Center at Goddard Space Flight Center.