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12. Infeasible or Non-schedulable Observations
All approved observations are accepted with the understanding that there
can be no guarantee that the observations will actually be obtained. In
previous cycles, the SSC has made all reasonable efforts to execute all
approved observations. In Cycle-5 more observations than can possibly
be scheduled are being selected (see Section 3.5.2 of the Cycle-5 Call
for Proposals).
In specifying observations through the completion of Astronomical
Observation Requests (AORs), the front-end graphical user interface to the
Astronomical Observation Template (AOT) will not process invalid
parameters. Therefore, a completed AOR represents a "doable" observation,
in principle. In practice, however, it could turn out that the actual
execution of some observations could prove to be highly difficult or
impossible. For example, on-orbit events may conspire to restrict the
range of acceptable or safe AOT parameters, and thereby make previously
approved observations infeasible. If the AOR can be modified to
make the observation feasible, the Principal Investigator will be given
the opportunity to make these modifications. Otherwise, the AOR will be
abandoned without execution. Guaranteed Time Observers will be permitted to re-allocate the relevant time
from abandoned observations to another observation in their existing programs.
The SSC Director will determine the usage of abandoned time from the General
Observer and Legacy investigations.
Go back to rules page or
go on to Section 13: Failed Observations
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