UV_SHORT Algorithm
Keywords: imager

Next: UV_SHORT Zero_Spacing Up: UV_SHORT Previous: UV_SHORT /REMOVE Contents Index

###
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.