Next: UV_TRACKS /FRAME
---- Using UV_TRACKS for ALMA ----
UV_TRACKS can be used to simulate ALMA observations, using the /TABLE
and /FRAME options to create tables with one or several configurations.
To do so, the command sequence must be
sic log astro_stations "alma-cycle1-1.cfg"
uv_track all [...options...]
The logical astro_stations must point to a configuration file of ALMA.
They are distributed with GILDAS and are called "alma-cycle0-com-
pact.cfg" and "alma-cycle0-extended.cfg" for Cycle 0; "alma-cy-
cle1-*.cfg" (6 different configurations) and "aca-cycle1.cfg" for Cycle
1. Then "uv_track all" means all stations will be used. This is differ-
ent from Bure, where all stations are in one single file and the user
defines with uv_track which stations are to be used; but this would be
painful for ALMA (32 stations to enter in Cycle 1...).
For ACA, it is better to enter "observatory aca" - coordinates are the
same, but this will make sure the proper antenna diameter is used in the
computation of shadowing.