Date: 2018 Jun 08 (UT)
Observers: Jon Brown (OSU)
TO: Geno Bechetti
SA: Dave Thompson (on call)

Moon phase: 

Summary:

Minor technical issues: LBC Blue filter wheel hardware failure.
                        MODS2 VFlat lamp seems to be working.
                        Fire alarm.
                        MODS1 data freeze.
                        MODS1r image counter reset after exposure sequence.
                        MODS2 slitmask move fault

Calibrations: MODSPhotCal/gd153
              MODS slitflats (0.6, 0.8, 1.0, 1.2)

Completed Programs: 

    MODS: ND_LLSgals/j1419a
          OSU_ASASSN/ASASSN17pg
          OSU_ASASSN/PS110jh
          OSU_ASASSN/ASASSN18jd
          


Details (All times UT):
----------------------------------
Plan: Plan is to do LBC for almost the entire night, switching to
      MODS at the very end to try and get ASASSN18jz. This plan
      lasted all of 15 minutes; new plan is switch to MODS all night.

02:30 - Sunset. The clouds haven't moved off yet, so we're probably
        going to be delayed opening like last night, but they're
        forcasted to move out.

03:30 - Getting set up on N3627 and we have a blue filter hardware
        failure....we've looped in several people to try and
        troubleshoot, but we may need to bail to MODS.

04:00 - We tried our best, but given that LBC blue is a no go tonight.
        We've also got clouds moving in, so we're going to reconfigure 
        for MODS and go from there.

04:35 - Starting MODSPhotCal/gd153.
        Conditions are looking not bad; the threatening clouds have
        for the most part moved off. Seeing is ~1" but occasional spikes.

05:10 - Starting ND_LLSgals/j1419a.
        Seeing is pretty poor (~1.5"), but sky is generally clear.

06:15 - The Steward fire alarm went off during the ASASSN17pg acquisition.
        Lost ~20-30 min. Apparently a smoke detector went off in the
        basement.
06:25 - MODS1 data has froze during acquisition, Olga is rebooting it.
06:35 - Started OSU_ASASSN/ASASSN17pg.
07:00 - Conditions holding steady; seeing is not great (~1.2").

08:00 - Starting OSU_ASASSN/PS110jh
        Sky is still clear, seeing is dramatically better at this elevation,
        guider FWHM ~0.6".
09:30 - Conditions looking pretty good. Seeing ~0.7", guide star flux steady.
09:45 - Going to stop this after 5/6 and get set up for ASASSN18jd.
        The moon is going to be awfully bright...

10:25 - Starting OSU_ASASSN/ASASSN18jd
        Finally, we should get data for this object.
        Seeing is ~1.5" and the sky is pretty bright, but the first
        spectrum looks good; this should take us to 12 degree.

11:05 - Something odd just happened with MODS1r. As the expsure sequence
        completed, the image counter on MODS1r reset back to 1 of 3. 
        The pop-up windows from execBinoMODS show that the exposure
        sequence has finished...and yet MODS1r is still taking images.

        Here's the filename breakdown:
        mods1r.20180608.0017 - thru slit
        mods1r.20180608.00[18-20] - scripted exposures
        mods1r.20180608.00[21-22] - extra unrequested exposures

11:15 - Going to run the slitflats, and that will do it for this run.

12:25 - Got a slitmask move fault on MODS2. Retry worked; unclear if
        just a communications glitch or a mechanical issue...

12:50 - Cals finished up.