PDS_VERSION_ID               = PDS3                                           
                                                                              
                                                                              
                                                                              
RECORD_TYPE                  = FIXED_LENGTH                                   
RECORD_BYTES                 = 2880                                           
FILE_RECORDS                 = 47                                             
DATA_FORMAT                  = FITS                                           
DESCRIPTION                  = "                                              
During the cruise from Jupiter to Pluto, an attempt was made to create        
a flatfield correction image by scanning a bright star along the length       
of the Alice slit at several offset positions across the width of the         
slit. Due to the relatively large size of the pointing dead band used by      
the New Horizons spacecraft during this observation, as compared to the       
width of the Alice slit, this attempt was unsuccessful. As such, no           
flatfield correction is applied to the data by the Alice calibration          
pipeline, and the current flatfield file is merely a placeholder with a       
value of 1.0 everywhere.                                                      
                                                                              
In practice, true pixel-to-pixel variations in instrument sensitivity         
are relatively minor and are dominated by the odd-even row effect. This       
effect is caused by a non-linear detector response that occasionally          
causes the physical location of charge pulses on the detector anode to        
be erroneously mapped into an adjacent row in data space. This causes         
the odd rows of the detector to appear to be less sensitive than even         
rows. The overall number of counts is conserved, but an event that            
should be mapped to an odd row in data space may end up being mapped to       
an adjacent even row. The magnitude of this effect varies, in a complex       
manner, depending on the exact two-dimensional pattern of flux on the         
detector, and no attempt is made to correct for it in the automated data      
processing pipeline.                                                          
"                                                                             
                                                                              
^HEADER                      = ("PA_FLAT_000.FIT",1)                          
^IMAGE                       = ("PA_FLAT_000.FIT",2)                          
                                                                              
                                                                              
MISSION_NAME                 = "NEW HORIZONS KUIPER BELT EXTENDED MISSION"    
DATA_SET_ID                  = "NH-A-ALICE-3-KEM1-V3.0"                       
PRODUCT_ID                   = "PA_FLAT_000"                                  
PRODUCER_INSTITUTION_NAME    = "SOUTHWEST RESEARCH INSTITUTE"                 
PRODUCT_CREATION_TIME        = 2007-04-23T14:42:25                            
START_TIME                   = "N/A"                                          
STOP_TIME                    = "N/A"                                          
                                                                              
                                                                              
                                                                              
INSTRUMENT_NAME              = "ALICE ULTRAVIOLET IMAGING SPECTROGRAPH"       
INSTRUMENT_ID                = "ALICE"                                        
INSTRUMENT_HOST_NAME         = "NEW HORIZONS"                                 
                                                                              
                                                                              
OBJECT                       = HEADER                                         
  BYTES                      = 2880                                           
  HEADER_TYPE                = FITS                                           
  INTERCHANGE_FORMAT         = ASCII                                          
  RECORDS                    = 1                                              
  DESCRIPTION                = "FITS header for LEISA calibration file"       
END_OBJECT                   = HEADER                                         
                                                                              
                                                                              
OBJECT                       = IMAGE                                          
  LINE_SAMPLES               = 1024                                           
  LINES                      = 32                                             
  SAMPLE_BITS                = 32                                             
  SAMPLE_TYPE                = IEEE_REAL                                      
  INTERCHANGE_FORMAT         = BINARY                                         
  AXIS_ORDER_TYPE            = FIRST_INDEX_FASTEST                            
  LINE_DISPLAY_DIRECTION     = UP                                             
  SAMPLE_DISPLAY_DIRECTION   = RIGHT                                          
END_OBJECT                   = IMAGE                                          
                                                                              
END