MDM Trouble Report for 2005 May 1

Telescope: 2.4m
Observer(s): Deokkeun An, Aiying Zhou (OSU, Missouri State Univ.)
Instrument: Apogee (Visitor inst.)

Problem(s) Encountered:
We have found that the mirror temperature has been increased
linearly after the yesterday's observation (in the morning
on May 1st). Although the mirror temperature has stayed
above the dome ambient temperature during daytime, it
has dropped below the ambient temperature since we have began
our observation at 7 pm (local) on May 1.

We have tried to fix the problem during daytime by opening
and closing the mirror covers, but there seemed to be
no indication of cooling the mirror.

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Submitted on 2005 May 2 [5:51:55]