Date: 2018 Jun 05 (UT)
Observers: Jon Brown (OSU)
TO: Steve Allanson
SA: Dave Thompson

Moon phase: 

Summary: Night started off very promising, but a little before midnight
         the clouds moved in, and the data are likely to be of little use.

Minor technical issues: Instconfig communications glitch. I've encountered
                        this on a few separate occasions, and a simple retry
                        or abort doesn't seem to fix the issue, but updating
                        the GUIs before a retry seems to work.

Calibrations: MODSPhotCal/gd153

Completed Programs: 

    MODS: UM_Icarus/MACSJ1149LS1
          ND_carbon/CVn2

          


Details (All times UT):
----------------------------------
Plan: Plan is MODS all night. 

02:30 - sunset
        Couple hours before sunset, weather looked not great (clouds)
        but looks like it should clear up once the sun goes down.

03:20 - Going to start with standard star gd153.
        Note: I'm copying all *.acq files to *_acqb.acq and
        changing the ACQCamera to Blue and ACQFilter to g_sdss.
03:30 - Starting gd153.obs.

03:45 - Starting UM_Icarus/MACSJ1149LS1
03:50 - The guide star that was selected was outside the patrol
        field. In order to proceed with the observation, we opted
        to choose a position angle of 290 and re-execute the scripts.
        We ran into what seems to be a communcations glitch with instconfig;
        we clicked update on GUIs and that seemed to resolve the issue.

        As expected, MODS2r is not cooperating. Some exposures (1?) may be 
        be acceptable, while others are not. Also note that bright nearby
        stars are causing ghosts on the image.

        Last couple images might have had deteriorating image quality. Target
        was getting pretty low in the sky and the guide star flux seems to have 
        decreased by a few tenths of a magnitude; 

05:15 - Moving to ND_carbon/CVn2.
        Conditions still seem pretty good, may be some thin cirrus.
        Guider FWHM ~0.9".
06:20 - Condtions still looking pretty good, but satellite shows some
        clouds building up (pretty thin though, as the Galaxy is still
        very clear on the all sky). Guider FWHM ~0.6".

06:40 - Moving to OSU_ASASSN/ASASSN17pg.
        Conditions are generally clear, but this target is somewhat low
        and in the West, so local transparency may not be great.
        Guide star is somewhat fuzzy/elongated. We've got something like
        1 mag of cloud extinction, but we can see the target in the acq image,
        so we'll give it a shot.
07:00 - The clouds have really moved in...not looking good.
07:15 - First images are in, trace is detected, but it will be pretty low
        S/N. Data might be vaguely useful. Actually, probably not. Clouds got
        progressively worse, guiding was lost on the last few minutes of the
        last exposure. Extinction is ~4-5 mag based on the LBTGuide plots,
        but they are patchy.

08:30 - Starting OSU_ASASSN/PS110jh.
        Object visible on the field image, so we'll give it a shot. Weather 
        does not look like it will cooperate, however.
09:30 - Conditions still quite bad.
10:45 - Exposure sequence finished; executing additional exposures since it 
        looks almost clear, and we have about 20 minutes before 12 deg 
        twilight. Sky looks mostly clear in this direction, seeing ~1". 
        
11:15 - There's still a haze of clouds, and the sky is fairly bright.