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The Scheduling Block
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Preconditions
The
Preconditions
panel specifies the conditions that must be met before this SchedBlock canbe executed.
Figure 6.5:
The
Preconditions
panel of the Scheduling Block form
. |
-
Baseline cal
: If true, baseline calibration must have been done before this SB is executed.
-
Max PWVC
: Maximum value of precipitable water vapour column density in mm. If the current value exceeds this, the SB should not be executed.
-
Seeing
: The user will want to input this in arc seconds. This should be the raw value (i.e., before correction).
-
Phase Stability
: RMS of astronomical phase after WVR correction over some TBD time period (hopefully
length of an SB), expressed in degrees.
-
Max Wind Velocity
: Maximum allowed wind velocity for this SB.
-
Min Allowed HA
: SB must be scheduled at HA greater than this maximum.
-
Max Allowed HA
: SB must be scheduled at HA less than this minimum.
The ALMA OT Team, 2011 May 20