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        *** THIS HELP IS NOT UPTODATE ***

    Main modifications to CLIC since the MAR99 version:
  [24-sep-1999] FIND /RECEIVER is now available
  [24-sep-1999]  FIND  will  not be case sensitive for Source names and Line
    names.

        Main modifications to CLIC since the JUL98 version:
  [29-jan-1999] SET X TCHOP, TCOLD, TCUGSBIN, TDEWAR1,  ...,  TDEWAR3:  Plot
    some temperatures recorded in the receiver cabin.

  [13-jan-1999]  SET  PHASE ATM /ANT i j : The phase correction can be vali-
    dated independently  for the different antennas.

  [24-Nov-1998] SET X GROUNDS, EMISSION, AIRSS: new items to plot.

  [16-oct-1998] SET SCAN, FIND/SCAN: now accept a more general scan list  s1
    s2 s3 s4 ...

        Main modifications to CLIC since the APR98 version:
  [19-may-1998]  MODIFY FOCUS: to correct the phases according to the actual
    focus
      position used (should be used only on data prior to November 1996,
      or April 1998 for the few projects using HIGH lock).

  [28-apr-1998] SET SELECTION CONT /WINDOW * is now allowed  to  reset  fre-
    quency windows in the building of continuum tables from line subbands.

  [28-apr-1998]  LIST/SHORT  will  now  log  the  scan  numbers  is an array
    S_GROUP[2,N_GROUP]

  [25-apr-1998] LIST /OFFSET will give the list of position offsets  in  the
    current index (useful for a mosaic session).

    Main modifications to CLIC since the NOV97 version:
  [16-feb-1998]  STORE  CORRECTION  AUTO [tmin] : tmin is now accessible (in
    minutes)

  [30-jan-1998] SOLVE FLUX now gives the decorrelation  factor  relative  to
    the efficiencies logged in the scan headers.

  [24-nov-1997]  SOLVE  FIVE  [/PLOT]  now  possible for five point pointing
    scans.  SOLVE TOTAL/PRINT available.

    Main modifications to CLIC since the APR97 version:
  [08-oct-1997] FILE /DIRECTORY: Open a window to edit interactively the raw
    data file directories.

  [03-sep-1997]  SET  AMPLITUDE  UNSCALED: to reset the SET AMPLITUDE SCALED
    state (if needed).

  [26-aug-1997] SET Y ATMLIDITY: plots the validity of the phase  correction
    (values 0 or 1) as stored by STORE CORRECTION

  [26-aug-1997] SOLVE GAIN SCAN to solve gain scan by scan (instead of aver-
    aging all scans)

  [21-aug-1997] SET Y  WIND_AVERAGE,  WIND_DIR_AV,  WIND_TOP,  WIND_DIR_TOP:
    plots the wind variables (average, direction of average, maximum, direc-
    tion of maximum)

  [17-aug-1997] After a FIND the scans are now time ordered even across  the
    9999/0001 scan numbering boundary.

  [17-aug-1997] STORE CORRECTION SELF works like AUTO, but the phase correc-
    tion valitity is based on the amplitude of each scan, whether or not  it
    is a phase calibrator.

  [27-jul-1997]  GET n /HEADER to access the header vatiables of a given ob-
    servation without acessing the data itself (i.e. the header file only is
    needed).

  [25-jul-1997]  SET  OBSERVED  n1  n2 : use integer representation of dates
    made possible

  [22-jul-1997] variable SHORTLE available after FILE IN : contains the file
    name without directory or extension.

  [04-jun-1997] TABLE /RESAMPLE nchan rchan value inc V|F The syntax of /RE-
    SAMPLE has
     been changed for compatibility with CLASS: One may now enter the veloc-
    ity or frequency offset at the reference channel.

  [22-may-1997]  FILE /WINDOW Open data files via a file browser of the win-
    dowing system.

  [20-may-1997] SET PHASE ATMOSPHERE NOFILE bypasses  the  effect  of  STORE
    CORRECTION.

  [20-may-1997]  It  is  now  HIGHLY RECOMMENDED to use the extension ".hpb"
    when creating header files for calibration.

  [20-may-1997] FILE RAW [project] [date] [/WINDOW] This command may be used
    to  open  raw  data files residing in the directories IPB_DATA:, IPB_DA-
    TA1:, IPB_DATA2:, ... assuming they have kept teir  original  names  jj-
    mmm-yyy-pppp.ipb,  (with  date  and  project name), and to create header
    files for calibration.

        Main modifications to CLIC since the DEC96 version:

  [07-apr-1997] FITS [name] FITS will now create a fits  file  (named  name-
    l0i) with each selected line subband.

  [04-apr-1997] SET SELECTION LINE DSB This is now allowed in LINE mode, and
    means that the side band will be automatically selected when  the  TABLE
    command is issued, to match the desired frequency range.

  [03-mar-1997] SOLVE FLUX [NOREFERENCE] Use the default efficiencies rather
    than a reference source to set the flux scale.

  [03-mar-1997] SOLVE FLUX [BEST n] Average the results of  the  n  antennas
    giving the highest fluxes to compute the source flux.

  [12-feb-1997]  COPY  HEADERS|DATA [[NO]BASE] [[NO]]ANTENNA 1st argument is
    now mandatory; second and/or third select which calibration  section  is
    created.

  [08-jan-1997]  STORE CORRECTION GOOD|BAD|AUTO Store, in the header of each
    scan, whether the atmospheric phase correction will be applied when  SET
    PHASE ATMOSPHERE is used.

        Main modifications to CLIC since the NOV95 version:

  [29-nov-1996] SET WRITE DATA|NODATA now renamed to SET COPY DATA|NODATA.

  [12-nov-1996]  STORE QUALITY qual ; change the data quality in the current
    index (equivalent to a loop of TAG commands).

  [12-nov-1996] LIST /VARIABLE variables /FORMAT formats : lists the  header
    variables  for scans in the current index; may also be used with /SHORT.

  [04-nov-1996] SOLVE POINT, SOLVE FOCUS, SOLVE GAIN, SOLVE DELAY  now  have
    an option /PRINT to write an OBS procedure in directory INTER_OBS:

  [17-oct-1996]  SOLVE  HOLOGRAPHY  [FREE r1 r2..] : some panel rings may be
    released from the paraboloid fit.

  SET Y AZ_ERR and EL_ERR ; AZ_PH and EL_PH : plot pointing errors, and hor-
    izontal coordinates of the phase tracking center.

  [04-jun-1996]
  SET Y AZ_ERR and EL_ERR ; AZ_PH and EL_PH : plot pointing errors, and hor-
    izontal coordinates of the phase tracking center.

  [27-may-1996]
  MODIFY ANTENNA|BASELINE /OFFSET 89|96 The argument to /OFFSET is  mandato-
    ry, and selects either the old (89) or the new (96) standard station co-
    ordinates.

  [14-may-1996]
  ATMOSPHERE now checks the efficiencies on phase calibrators, assuming  the
    flux in the header is correct.

  [10-may-1996]
  -  FIND /SOURCE s1 s2 .. sn is now supported.  - FIND /SCAN n1 n2 will now
    loop across 9999/0000 if n1 > n2.

  [29-apr-1996]
  - CLIC is now dimensioned for FIVE antennas.

  [29-apr-1996]
  - SET X|Y PARAL_ANGLE:
     The parallactic angle can be plotted.

  [14-apr-1996]
  - SET COPY DATA|NODATA:
     A new data access mode. See HELP SET COPY.
  - SET BASELINES ALL, SET ANTENNAS ALL:
     Use all the baselines, in the data by default. See HELP SET BASELINES,
  - SET SUBBANDS ALL, SET SUBBANDS LINE, SET SUBBANDS CONT:
     Use all the subbands in the data, switch  between  line  and  continuum
    subbands.
  - SET PHASE EXTERNAL|INTERNAL and STORE PHASE /RECEIVER:
     A  new  mode  to  use the other receiver as a phase reference for phase
    calibration. See HELP SET PHASE,  HELP  SOLVE  PHASE.   See  also  STORE
    PHASE.

  [07-mar-1996]
  - Command PHASE CONTINUOUS:
     to recover from a real time problem due to jumps of the LO2.

  [07-feb-1996]
  - Command MODIFY AXES:
     to  correct  for non intersection of the azimut and elevation axes. See
    HELP MODIFY AXES. SOLVE BASELINE has also been  modified  to  solve  for
    this parameter using elevation as an X axis.

  [17-jan-1996]
  - Command MODIFY BUG 1:
     to correct for a calibration bug affecting data between 11-nov-1995 and
    09-jan-1996.

  [20-dec-1995]
  - Command  PLOT /NOFRAME pen
     used to overlay a plot with the previous one, using a different  color.

  [28-nov-1995]
  - SET PROJECT resets the RF mode to OFF.

        Main modifications to CLIC since the JAN95 version:

  [09-nov-1995]
  - Implementation of the atmospheric correction.
     See command MONITOR, and SET PHASE ATMOSPHERE.

  [08-sep-1995]
  - Command SET SORT RECEIVER|SCAN

  [25-jun-1995]
  - Command SET TIME_ORIGIN

  [08-jun-1995]
  - command SET UV_RANGE:
     data will not be plotted ouside of this range.


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