TS_MEAN (Mar95)                  suntrans                  TS_MEAN (Mar95)



NAME
    TS_MEAN -- make an alternate l=0 (mean value) time series file  from
    the  residual  means  stored  in  the  remapped  image headers.  The
    headers are inserted by task maskdisk or task filt_map.
    
    
USAGE
    ts_mean inputl lmax nslot1 ntime timefile file_title (m_type tolerance del_image)
    
    
PARAMETERS
    
    inputl
        input list of images.  This list must contain images  registered
        on  a heliographic coordinate system which have been masked with
        maskdisk.
    
    lmax
        maximum l value.  The current scheme of file  organization  will
        not support lmax<2.
    
    nslot1 
        time slot number for the first time point in this file.
    
    nslotn 
        time  slot  number  for  the  last time point in this file.  The
        maximum number of samples allowed is 1440--one  day's  worth  of
        data for images with 60 second spacing.
    
    timefile
        prefix template for alternate time series file.
    
    file_title
        title  for  output  time  series file.  It is suggested that the
        user wait for a prompt from the task for this input.
    
    tolerance = 0.00001
        tolerance for image time alignment in time series file.   Values
        greater than 0.00000001 are accepted.
    
    del_image = 60
        time increment between images (seconds).
    
    m_type = "all"
        m spacing in file.  The values are "even" or "all".
    
    
IMAGE HEADER WORDS
    
    SER_SLOT
        time sample number
    
    MEAN_INT
        mean  value  of  the  masked  image.   The zeroed pixels are not
        included.
    
    NLAT
        number of latitude points in spherical harmonic transform
    
    LAT1
        most southerly point for latitude array  in  spherical  harmonic
        transform
    
    DLAT
        latitude point spacing in spherical harmonic transform
    
    LATTYPE
        type of point spacing in spherical harmonic transform
    
    EPOCH
        UT time of time sample 0, format yyyy/mm/dd.hh:mm:ss
    
    TOTNLONG
        total  number  of  points in longitude fft in spherical harmonic
        transform
    
    
DESCRIPTION
    Task TS_MEAN makes a time series file for l=0 (mean value) from  the
    mean  values  stored  in  the  image  headers  of  a  list of images
    remapped on a heliographic  coordinate  system.   The  new  file  is
    created with title alt"timefile"yymmddl_000.
    
    
EXAMPLES
    1.   Put  the  image  means  in  the  remapped images listed in file
    mean1.lis into an time series file.  The time series file  title  is
    "October  calibration".   The output file, named altamts891024l_000,
    is 300 time slots long.
    
            su> ts_mean @mean1.lis 1 300 amts "October calibration" 
    
    2.  The second half of the series above is to be put into  a  second
    l=0  interim  time  series  file,  starting with time slot 301.  The
    output file, named altpmts891024l_000, is 300 time slots long.
    
            su> tsermean @mean2.lis 301 300 pmts "October calibration" 
    
    
    
TIME REQUIREMENTS
    Highly dependent upon file size and disk I/O capabilities.
    
    
BUGS
    None known.
    
    
SEE ALSO
    otrans, maskdisk
    
    helio_image
    
    timeser_file