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UV_SHORT Algorithm

    UV_SHORT  task  computes  pseudo-visibilities for short or zero spacings
    from a single dish table of spectra (Class  table)  or  LMV  data  cube.
    These pseudo visibilities are  appended to the current (presumably a Mo-
    saic) UV table.


    Short spacings are computed when the  Interferometer  dish  diameter  is
    smaller than the Single-dish diameter, Zero spacings otherwise (see HELP
    UV_SHORT Zero_Spacing for this case)

    For short spacings, the command performs two steps
      (1) Creation of a "well behaved" map from the spectra.
      (2) Extraction of UV visibilities from this map.

    See HELP UV_SHORT Step_i for detailed explanations of the method steps.

    With recent UV tables and Single Dish CLASS table, most  parameters  are
    automatically  determined.  The  only  parameter to be specified remains
    SHORT_SD_FACTOR (although that one may also be determined  automatically
    if  the  input  single dish data set is in main-beam brightness tempera-
    ture).

    A parameter set to 0 value indicates the appropriate default  should  be
    used.


Gildas manager 2023-06-01