20170416 Commissioning Plan

Priorities for test are in the order listed in the plan below.

twilight tests

Standard LRS2 twilight for any science frames that might be taken

VIRUS special twilights

Purpose: There is some interest in seeing what the long term illumination correction changes look like including what different track positions do to them. The script is "specialtwilight" in /home/mcs/astronomer/bin/. It takes a single argument which is the Observation number.

Procedure:

• Setup the guide camera for sky twilight (GC2, 0.1 sec exposure, B filter)
• When you hit the correct flux level (biased to a slight higher value, perhaps 5k) execute the specialtwilight script

Night time engineering:

BIB Drag Test

• Make sure your stack is pretty good (RSE < 250)
• Make sure GROC is pretty well set
• Select a 13th mag target near the start of the track for all probes and targetted on BIB using shuffle
• When making offsets make sure to use the new corrections box.
• Setup on BIB and start guiding on BIB.
• Center up both guide probes and start metrology loops.
• Center up at least one OWFS to watch focus.
• set bib exposure to be not saturated but at least 3 seconds ( e.g. 2 seconds with 2 co-add)
• Record a time, GROC and RSE in the log
• Hit "store images" and "Start Metrology Loop" for GC1, GC2, WFS1, WFS2, TT, BIB
• In this test we should NEVER apply X,Y, or GROC offset corrections
• Run until the end of track
• when done, record a time, GROC and RSE in the log

Run this at several different Az. Priorities 40, 0, 20, 340, 30, 330.

Az already done:

• 350, 10, 320 on 20170415

Prep for science

• Check LRS2-B and LRS2-R positions on ACAM
• Check offset from LRS2-B to LRS2-R with mpg
• check VIRUS dither exposures for HETDEX fields

Closed dome engineering for bad weather, or while stacking:

Full set of LRS2 and VIRUS cals.

Special cals that need to be done:

• LRS2 FeAr 1800s blue x4
• VIRUS 10 darks of 360 seconds

See and update ​longcals when done.