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Basic Information on dwell
Task: dwell
Purpose: Calculate dwell time for given array configuration
Categories: utility
DWELL - Calculate the dwell time for a given array configuration.
The dwell time is the maximum amount of time that can be
spent on a given field before the longest baseline
rotates to a completely independent visibility point. It is
given by
tdwell = (43200/pi)*(D/L)*(1/N)
where D is the antenna diameter, L is the longest baseline, and
N is the number of fields.
This task can be used to help maximize the on-source time and
increase observing efficiency. It is of most use when planning
mosaic observations.
Key: ary
The name of a text file containing the antenna positions
(in nanosec and either topocentric or geocentric coordinates).
Can be either same format as for uvtrack ("ary format") or uvgen
("ant" format). No default.
Key: format
Format for array file, "ant" or "ary", indicating styles
of $MIRCAT/*.ant[pos] or $MIRCAT/*.ary, respectively.
Default is "ant".
Key: nfields
Number of fields in the mosaic. No default.
Key: antdiam
Antenna diameter (m). Default=6.1
Key: options
verbose Print out the antennna pairs and baseline lengths