BIG_MAK (Mar95)                    merge                   BIG_MAK (Mar95)



NAME
    BIG_MAK  --  task  for piecing time series files using only parts of
    the input time series files.
    
    
USAGE
    big_mak input_files outputl time_start time_end epoch 
          file_title (nepoch nsecdel seconds mtype)
    
    
PARAMETERS
    
    input_files
        ASCII file containing list names for  time  series  files.   See
        big_mak_list_file for exact description
    
    outputl    
        list of output files
    
    time_start
        starting     time     for    output    time    series,    format   
        yyyy/mm/dd.hh:mm:ss.
    
    time_end    
        ending time for output time series.  Format as time_start.
    
    epoch
        time at  time  sample  number  nepoch.   Format  as  time_start.
        time_start  does  not have to be equal to epoch, but it can't be
        before it.
    
    file_title
        title line for output files.
    
    (nepoch =1)   
        time sample number for epoch.  This does  not  have  to  be  the
        first time sample in the output file, but it can't be after it.
    
    (nsecdel=60)
        number of seconds between time samples
    
    (seconds = no)   
        include seconds in time sample number computation.
    
    (mtype = all)   
        m values for mode coefficients: even or all.
    
    
IMAGE HEADER WORDS
    
    SITE
        observing site.
    
    LMAX
        maximum l value for checking
    
    NSLOT1
        sample number of first pixel in file, if available
    
    EPOCH
        Epoch date and time in UT for input time series file
    
    TS_START
        starting date and time in UT for input time series file
    
    L_VALUE
        l value for input time series file
    
    CD1_1
        spacing for time samples (axis 1, world coordinate system).
    
    M_TYPE
        mode  coefficients  in  the  file are for even-m values or all-m
        values
    
    
DESCRIPTION
    Task BIG_MAK pieces together time series from up to 30  lists  using
    parts of the input time series.
    
    
    
EXAMPLES
    1.   Put the time series for 92/04/01 and 92/04/02 together from the
    lists filein.april.  Omit time samples  1441-1470  of  the  94/04/02
    time  series  and use instead the time sample from the 92/04/01 time
    series.  Time sample spacing is  60  seconds.   The  epoch  used  is
    April 1, 1992.
    
            su> big_mak filein.april @lis.earlyapril "1992/04/01.00:00:00"
                "1992/04/01.23:59:50" "1992/04/01.00:00:00" 
                 "Early April merge data" 
    
    The input file filein.april is as follows:
    
      Edited data for early April
       2
       1  1470 @lis.mergeapril1
     1471 2880 @lis.mergeapril2
    
  
 
    TIME REQUIREMENTS
    The time requirements for the actual arithmetic are minimal.  Clock time 
    requirements are heavily dependent on the disk accessing time for the 
    time series files.   
   
 
    BUGS
    None known.
    

    SEE ALSO
    timeser_file in package SUNTRANS for a description of time series files.