MOON

This is an old revision of the document!

Dewar LN2 Filling

The dewar has a 2-day hold time, but needs to be filled daily to keep the telescope balanced. The operator wil do this, usually right after you finish taking twilights and before it’s dark enough for real observing.

Trouble Call List

Please use the following order when calling for help with 90prime.

1. Bill Wood
2. Gary Rosenbaum
3. Others as instructed by the above personnel. Please do not jump ahead and call others first, they are not necessarily familiar with current instrument operations.

Other Support Issues

Please fill out your observing forms with your filter needs, twilight flat needs, dorm needs, etc, and send to 90ops@as.arizona.edu with a copy directly to Bill Wood (bwood@as.arizona.edu).