All slit mask files must be submitted at least 6 weeks
in advance of an observing run.
Frank Perez must give permission for files to be submitted
between 3-6 weeks before a run. We cannot guarantee that
masks will be cut in this interval.
NO masks will be cut less than 3 weeks before the deadline.
The following summarizes the FAILURE rate of meeting the
old policy (submitting mask files at least 28 days in advance).
|Arizona|| ||66% (100 of 151 files)|
|Carnegie|| ||87% (103 of 118 files)|
|Chile|| ||86% (12 of 14 files)|
|CfA|| ||79% (59 of 75 files)|
|MIT|| ||74% (29 of 39 files)|
|Michigan|| ||47% (17 of 36 files)|
|Toronto|| ||98% (44 of 45 files)|
In addition to this policy, observers should always verify that
their program has the correct f/ratio (IMACS/2 or IMACS/4) for their
program. The Observatory works hard to block schedule IMACS to avoid
frequent changes between f/ratios.