User`s guide

FLAMINGOS at the MMT
V. Shutting Down at the End of the Night
At the end of a long and productive (we hope!) night of observing, there is a small sequence of things that
need to be done. In order, they are:
1. Move the wheels to their resting positions - Using the scripts config.mos.wheel.pl and
config.filter.grism.decker.wheels.pl send the MOS wheel to imaging, the decker wheel to
imaging, the filter wheel to J, and the grism wheel to true_dark.
2. Take any necessary dark frames - Now that the grism is in the dark position, you will be able to take dark
frames. We recommend 10-20 darks per exposure time. Use the set.exposuretime.pl,
set.filename.pl, and the more.singleimages.pl scripts to complete this task.
3. Fill the MOS Dewar (as long as no one is changing MOS PLATES) - Use the same procedure as you used at
the beginning of the night. If someone is changing Mos plates, turn on the heater; note you should not take
darks while the heater is on.
4. Begin ftping data to packrat if it has not already been copying in the background as you took data, and write
the transferred data to tape.
15/23