Date: 2018 Apr 15 UT
Observers: Danielle Berg, Rachel Cannata, Evan Skillman
TO: David Gonzalez-Huerta
SA: Olga Kuhn

Moon Phase: waning crescent

Summary: 
  We experienced problems with MODS, LUCI, and LBC preventing us from
  completing any program. Got a 1.5hr exposure of Haumea at the end of
  the night.

Major Technical Issues:
  Discovered a problem with MODS1 Blue, control computer failed and rebuild will
  not be done until the following day [this was completed and back online]

  MODS2 Red still down

Minor Technical issues:
  Time-outs on feige66 acquisition

  Ambient light in MODS1 Red spectrum, light coming from inside MODS1 - light from LED flash projector
  that turned on anomalously and was not recognized until later.  
  [During the day following this problem was fixed and will not be an issue moving forward].

  Both mirrors panicked early on in the night

  LBC not responding to coma adjustments

  Computer response slow most of the night

Calibrations:

LBC:

MODS:

LUCI:

Standard Stars:
    feige66

Details (All times UT)
---------------------------------

02:00 - Handover

02:30 - Begin with standard feige66
02:35 - MODS2 Blue preset failed, successfully restarted. MODS1 red offset failed. 
02:45 - Aborted process, restarted preset. Initial exposures successful

03:00 - Discovered light on red end of MODS1 Red spectrum of feige66

03:15 - Attempted preset on OSU-ASASSN PS18kh, both mirrors panicked. Unable to begin program

03:50 - Source of light still unknown. Preset to OSU_M82

04:10 - Test spectrum of feige66 (3 min exposure) to understand effect of light in MODS1 Red. Exposure yielded hundreds of counts of excess light. Switching to LUCI programs
04:20 - Both mirrors panicked

04:35 - Beginning calibration for UVa_HAUMEA
04:55 - Mask error on LUCI2
05:30 - Aborting LUCI program. Switching to LBC

05:40 - Beginning LBC startup
06:45 - Begin calibration of N4826 program
06:50 - Glass and ambient temperature difference of 0.9 degrees C
07:40 - Temperature different by 1.2 degrees C. Collimation challenging
08:05 - N4826.ob, seeing 1.5 (blue), 1.0 (red)
08:35 - Ambient temperature heating up too quickly for glass to catch up. Focus in blue getting worse. Aborting LBC program. Switching to LUCI Uva_Haumea program

09:25 - BD+26_2388 acquisition and exposure
09:40 - BD+12_2623 acquisition and exposure
10:25 - Begin Haumea spectrum integration
12:15 - End Spectrum integration
12:25 - calibrations