1 FILE
        [POINT\]FILE Name Type

         Specify the input file name and type of  data  (OPTICAL,  RADIO  or
    INTERFEROMETRY).   The file extension is derived according to Type using
    the following defaults :  .OPT, .RAD and .INT  respectively.   The  file
    header are read, but not the data.

1 IGNORE
        [POINT\]IGNORE [/SCAN List  of  scans]  [/SOURCE  List  of  sources]
    [/TIME TimeMin TimeMax]

         Ignore part of the input data for the next SOLVE command.  The data
    must  have been read before.  The Scan list, Source list and time ranges
    are emptied each time a new READ or FILE command is typed.

1 INCLUDE
         [POINT\]INCLUDE [/SCAN List of  scans]  [/SOURCE  List  of  source]
    [/TIME Tmin Tmax]

         Include part of the input data (presumably previously ignored)  for
    the  next  minimization.  The data must have been read before.  The Scan
    list or Source list can be replaced by the "wildcard" * to  include  any
    scan or source.

1 LIST
        [POINT\]LIST [Scan] [/OUTPUT Filename]

         List the current data or the  specified  scan.   The  bad  data  is
    flagged  with  an  exclamation  point.   Option  /OUTPUT  can be used to
    redirect the LIST command output (default Terminal).

1 PARAMETER
        [POINT\]PARAMETER NAME [Value] [/FREE]

         Fix a fit parameter at the specified value, or free  the  specified
    parameter if option /FREE is present.  Value is in arcsecond.  Available
    parameters are
          IAZ     Zero azimuth
          IEL+COV Zero elevation
          COH     Azimuth collimation
          MVE     East Inclination
          MVN     North Inclination
          NPE     Non perpendicularity
          REF1    1st order refraction
          REF2    2nd order refraction
          ELES    grav.+exc. coder ele. (sin)
          ELEC    grav.+exc. coder ele. (cos)
          AZES    excen. coder az. (sin)
          AZEC    excen. coder az. (cos)
    REF1 and REF2 are preset to 0 and 0 by default, because  on  Plateau  de
    Bure  the  refraction  is  computed in real from meteo parameters.  They
    should not be freed, except for very specific purposes.

1 PLOT
                  PLOT [Argument] [/BAD]

         Plot some aspect of the data and fit results.  Argument may be
             SUMMARY (Default).
             Residuals in El versus residuals in Az.

             COVERAGE
             Elevation versus Azimuth of data points.

             ERRORS AZIMUTH or ERRORS ELEVATION
             Original pointing errors in Az or El, as a function of  Az  and
             El.

             RESIDUALS AZIMUTH or RESIDUALS ELEVATION
             Residual pointing errors in Az or El, as a function of  Az  and
             El.

             TIME
             Residual pointing errors as a function of time.

             CIRCLE
             General summary of pointing behaviour :  arrows indicating  the
             pointing  error  magnitude  and direction on a (Az,El) circular
             diagram.
    By default, only good data points (those considered  for  the  fit)  are
    plotted.    If   option  /BAD  is  present,  rejected  data  points  (as
    implicitely specified by commands IGNORE, REJECT, SET ELEVATION and  SET
    RMS) are also plotted, using the virtual pen number 2.

1 PRINT
        [POINT\]PRINT [/OUTPUT Filename|PRINTER] [/HEADER]

         List the last  fit  results  computed  by  command  SOLVE.   Option
    /HEADER can be used to list all fit parameters; by default only variable
    parameters are listed.  Option /OUTPUT can be used to redirect the PRINT
    command  output  (default Terminal); if PRINTER is specified as argument
    to /OUPUT option, the fit results are printed.

1 READ
        [POINT\]READ Antenna0mber [Station0me]

         Read the data of antenna Antenna0mber  (on  station  Station0me  if
    specified).  A file must have been opened using command FILE before.

1 REJECT
        [POINT\]REJECT MaxError

         Reject  all  data  points  with  pointing  residuals  greater  than
    MaxError  for  the  next  fits.  A READ command will reset the rejection
    threshold to infinity.

1 SET
        [POINT\]SET Item Value1 [Value2]

         Set some selection criterium.  Possible items are
             ELEVATION Elmin Elmax :
             specify valid elevation range (default 5 90, in degrees)

             RMS rmsmax :
             specify maximum standard deviation (from  gauss  fit)  for  the
             measured pointing errors.
    Optical  pointing  data  has  measured  pointing  errors  with  standard
    deviation  set to 0, so that SET RMS although meaningfull only for RADIO
    or INTER data, can also be used transparently.

         As for comands  IGNORE,  INCLUDE  and  REJECT,  selection  criteria
    specified  by  the  SET command will be considered for the next PLOT and
    FIT commands.  However, contrary to commands IGNORE, INCLUDE and REJECT,
    the criteria will not be reset by any READ or FILE command.

1 SHOW
        [POINT\]SHOW Item

         shows the specified items :
         RMS        The maximum standard deviation of original measurements
         IGNORED    Data points ignored based on Scans or Source name
         ELEVATION  The elevation range
         REJECTED   The rejected data scans, based on previous fit model
1 SOLVE
        [POINT\]SOLVE

         Compute fit results, considering only the valid data points implied
    by commands IGNORE, REJECT, SET RMS or SET ELEVATION.
1 END