Up: List of Associated Tasks
UV_TRACK simulates the uv coverage of an observation specified by the
source, observatory, and hour angle range. The output is a uv table that
can be used as input for tasks such as UV_FMODEL. Caution: this uv table
is not standard, as it includes two addition columns (#11 with eleva-
tion, #12 with integration time).
The weight column (#10) is filled with as realistic as possible esti-
mates of the actual weights (derived from Trec, Tau, elevation).
The visibilities columns (#8 and #9) are filled with a point source (am-
plitude = 1, phase = 0). Random phase noise can be added, to simulate
atmospheric phase noise.
UV_TRACK family of tasks (in order of increasing complexity):
- UV_TRACK: uv coverage + random phase noise
- UV_TRACK_PHASE: phase noise from atmospheric screen + observations
of calibrator + WVR correction
- UV_OBSERVE: also includes amplitude noise
- UV_OBSERVE_NEW: also includes anomalous refraction