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Approved targets will be assigned a priority flag as follows:
- priority A targets have high priority in the scheduling process.
In case a pointing is terminated by an unforeseen reason (e.g.
technical difficulty) an observation is considered as completed if
the overall time spent on the target (including all the pointings)
is larger than of the approved time.
- priority B targets are approved to cover more than the available
time to optimize the observing schedule. Therefore, only a
fraction of these targets will be observed in the present AO. In
case an observation cannot be performed, the target will not be
rescheduled in the following AO, if any.
- TOO targets. Although TOO observations have the highest priority
in the scheduling process, they will be performed only if a valid
trigger and a follow up program compliant with the approved
protocol is verified during the AO for which they are submitted