NJPL1I00PDS100000000         = SFDU_LABEL                                     
                                                                              
/* Detached label for Viking IRTM Chunk File */                               
                                                                              
RECORD_TYPE                  = FIXED_LENGTH                                   
RECORD_BYTES                 = 240                                            
BLOCK_RECORDS                = 83                                             
BLOCK_BYTES                  = 20480     /* 10 physical CDROM records*/       
BLOCKING_TYPE                = UNSPANNED /* 560 bytes padding at end */       
FILE_BLOCKS                  = 190                                            
                                                                              
/* Descriptive information */                                                 
                                                                              
SPACECRAFT_NAME              = VIKING_ORBITER_2                               
SPACECRAFT_ID                = VO2                                            
INSTRUMENT_NAME              = "INFRARED THERMAL MAPPER"                      
INSTRUMENT_ID                = IRTM                                           
DATA_SET_ID                  = 'VO1/VO2-M-IRTM-4-V1.0'                        
START_ORBIT_NUMBER           =  219                                           
STOP_ORBIT_NUMBER            =  232                                           
NATIVE_START_TIME            = 817171388 /* Flight Data Subsystem FDS*/       
NATIVE_STOP_TIME             = 821640060                                      
EVENT_START_TIME             = 1977-04-02T12:30:25Z /* Event time UTC*/       
EVENT_STOP_TIME              = 1977-04-16T23:52:48Z                           
START_SEASONAL_LONGITUDE     = 233.26 /* Solar aerocentric longitude */       
STOP_SEASONAL_LONGITUDE      = 242.41                   /* (L sub S) */       
NOTE                         = "                                              
 Viking Orbiter InfraRed Thermal Mapper Database of Mars: Chunk File.         
 Note: An IRTM 'orbit' is denoted by the first revolution number of           
 a set of sequences grouped together and represented by a single              
 entry in the Orbit Table.  It consists of data sequences from one            
 or more (normally one, occasionally a few) actual Viking Orbiter             
 revolutions, which were received in a single Experiment Data Record          
 (EDR).  For more information see the supplementary labels pointed            
 to below and the text file IRTMDATA.TXT."                                    
                                                                              
/* Pointers to file and to objects within it (in units of records) */         
                                                                              
^HEADER_TABLE                = 'TS2012.DAT':001  /* File header    */         
^INDEX                       = 'TS2012.DAT':002  /* Orbit index    */         
^ORBIT_TABLE                 = 'TS2012.DAT':003  /* Orbit info     */         
^SEQUENCE_TABLE              = 'TS2012.DAT':008  /* Sequence info  */         
^DATA_TABLE                  = 'TS2012.DAT':084  /* Target data    */         
                                                                              
/* Object descriptions */                                                     
                                                                              
OBJECT                       = HEADER_TABLE                                   
 BYTES                       = 240                                            
 ROWS                        = 1                                              
 NOTE                        = "IRTM chunk file header"                       
 ^STRUCTURE                  = 'HDRTAB.LBL' /* Structure description */       
END_OBJECT                                                                    
                                                                              
OBJECT                       = INDEX                                          
 ITEM_TYPE                   = VAX_INTEGER                                    
 ITEM_BYTES                  = 2                                              
 ITEMS                       =  14    /* Number revs in chunk range */        
 NOTE                        = "                                              
  Array of pointers to orbit level data in chunk.  Array contains             
  entries for all numbers between first orbit number in chunk and             
  last.  A zero entry indicates no data corresponding to that orbit           
  number.  A nonzero entry is the row index of the orbit level                
  information in the orbit table."                                            
END_OBJECT                                                                    
                                                                              
OBJECT                       = ORBIT_TABLE                                    
 FORMAT                      = BINARY                                         
 ROW_BYTES                   = 240                                            
 ROWS                        =   5       /* Number 'orbits' in chunk */       
 ^STRUCTURE                  = 'ORBTAB.LBL' /* Structure description */       
 NOTE                        = "Orbit level information for chunk"            
END_OBJECT                                                                    
                                                                              
OBJECT                       = SEQUENCE_TABLE                                 
 FORMAT                      = BINARY                                         
 ROW_BYTES                   = 240                                            
 ROWS                        =  22      /* Number sequences in chunk */       
 ^STRUCTURE                  = 'SEQTAB.LBL' /* Structure description */       
 NOTE                        = "Sequence level information for chunk"         
END_OBJECT                                                                    
                                                                              
OBJECT                       = DATA_TABLE                                     
 FORMAT                      = BINARY                                         
 ROW_BYTES                   = 166                                            
 ROW_COLUMNS                 = 83        /* Number columns/variables */       
 ROWS                        =  22593  /* Number observations (ICKs) */       
 ^STRUCTURE                  = 'DATATAB.LBL'/* Structure description */       
 STORAGE_TYPE                = PARTIALLY_TRANSPOSED /* Each 120 rows */       
 TRANSPOSED_SEGMENT_ROWS     = 120    /* are (separately) transposed */       
 NOTE                        = "                                              
  Data for chunk stored as a Partially Transposed Table.  This                
  means that every 120-row segment of the 83-column table has been            
  transposed into 83 rows, each containing 120 instances of a                 
  particular column.  See IRTMDATA.TXT for a fuller explanation."             
END_OBJECT                                                                    
                                                                              
END