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UV_TRACKS
[ASTRO\]UV_TRACKS station1 station2 [station3 [...]] [/FRAME
[size]] [/HORIZON Elmin] [/HOUR_ANGLE Hmin [Hmax]] [/INTEGRATION t]
[/STATIONS ALL|list] [/TABLE [Name]] [/WEIGHT Mode] [/SIZE [Size1]
[NantSize1] [Size2] [NantSize2] ...] [/OFFSET offset]
Plot interferometer UV coverage as observed with the interferometer.
The default is for NOEMA, but the command is more general and can be
used with any array, especially ALMA or SMA.
Station coordinates are searched for in the file defined by the AS-
TRO_STATIONS logical variable. The default file contains NOEMA stations.
It can be customized using the SIC LOG ASTROTIONS YouFile command.
Some configuration files for NOEMA, ALMA, and SMA are distributed with
gildas and can be used as ASTRO_STATIONS files combined with UV_TRACKS
ALL to avoid typing a lot of station names (see HELP UV_TRACKS NOEMA|AL-
MA|SMA)
Stations should be referred to by a mnemonic (e.g. E003, W000 ...) giv-
en as arguments of UV_TRACKS. Note that with the contruction of the
NOEMA track extension the mnemonic names changed from [E,N,W]+2digits
for the station number to [E,N,W]+3digits for the station number. Old
names are still accepted during a transition period.
The size of the antennas can be specified with the /SIZE option.
The /STATIONS option allows to use the ranks of the stations in the file
rather than the mnemonic names.
The coordinates of the most recently selected SOURCE or PLANET are con-
sidered. The frequency of the simulated observation is read from the Sic
FREQUENCY variable (which is also set by LET FREQUENCY command).
UV_TRACKS can be used iteratively, to simulate the observations of sev-
eral configurations. Option /FRAME indicate the start of a new observa-
tions: if not present, configurations are being stacked on the current
UV coverage. The user may select another color pen to distringuish be-
tween the various coverages. A sketch of the interferometer described by
ASTRO_STATIONS is also drawn, and the selected stations/antennas are
highlighted.
Subsections
Gildas manager
2024-03-29