; USERID
;---------------------------------------------------------------
;! User number
;# ADVERB CATALOG
;-----------------------------------------------------------------------
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;;
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;-----------------------------------------------------------------------
;---------------------------------------------------------------
USERID    LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
----------------------------------------------------------------
USERID
Type: Adverb (REAL)
Use:  Specifies the user ID number which is entered when beginning AIPS
      (logon) for the first time or RESTART is used.  This is the ID of
      the owner of the image.

      USERID is the furst adverb to a number of plot tasks for
      historical reasons only.  Catalogs have long stopped belonging to
      all users, so this adverb is only useful in a few tasks.
Null value:  0
      Null value means take logon number.
Magic value: 32000
      Magic value means take all logon numbers.

Tasks which can use USERID:
   DISKU.........Shows disk use by one or all users.
   MOVE..........Task to copy or move data from one user or disk to
                 another.  USERID is the target user.
   PRTAC.........Prints contents and summaries of the accounting file.

Tasks which ignore USERID:
   ANBPL.........Plots and prints uv data converted to antenna based
                 values.
   BPLOT.........Plots bandpass tables in 2 dimensions as function of
                 time.
   CAPLT.........Plots closure amplitude and model from CC file.
   CCNTR.........Generate a contour plot file from an image with CC or MF
                 plotted.
   CLPLT.........Plots closure phase and model from CC file.
   CNTR..........Generate a contour plot file or TV plot from an image.
   DFTPL.........Plots DFT of a UV data set at arbitrary point versus
                 time.
   FRMAP.........Task to build a map using fringe rate spectra.
   FRPLT.........Task to plot fringe rate spectra.
   GAL...........Determine parameters from a velocity field.
   IMEAN.........Displays the mean & extrema and plots histogram of an
                 image.
   IRING.........Integrates intensity / flux in rings / ellipses.
   ISPEC.........Plots and prints spectrum of region of a cube.
   PCNTR.........Generate plot file with contours plus polarization
                 vectors.
   PCPLT.........Plots pulse-cal tables in 2 dimensions as function of
                 time.
   PFPL1.........Paraform Task to generate a plot file: (does grey scale).
   PFPL2.........Paraform Task to generate a plot file: (slice intensity).
   PFPL3.........Paraform Task to generate a plot file: (does histogram).
   PLCUB.........Task to plot intensity vs x panels on grid of y,z pixels.
   PLOTR.........Basic task to generate a plot file from text input.
   PLROW.........Plot intensity of a series of rows with an offset.
   POSSM.........Task to plot total and cross-power spectra.
   PROFL.........Generates plot file for a profile display.
   RSPEC.........Plots and prints spectrum of rms of a cube.
   SL2PL.........Task to convert a Slice File to a Plot File.
   TAPLT.........Plots data from a Table extension file.
   TARPL.........Plot input and output text files of the TARS task.
   UVHGM.........Plots statistics of uv data files as histogram.
   UVPLT.........Plots data from a UV data base in multiple ways.
   VPLOT.........Plots uv data and model from CC file.
----------------------------------------------------------------
