Date: 2019 Jan 22 UT
Observers: Jack Neustadt, Ness Mayker
TO: David Gonzalez Huerta  
SA: Dave Thompson  

Moon phase: Waning Crescent (1 day past third quarter)

Summary: Took BVR flats for Monitor program, ran OSU_Monitor N6503 &
	 N6946 programs. Finished with a 30 minute gap before other
	 visible LBC programs. Reran N6946 until N672 was
	 observable. Had to close telescope due to high humidity. Ran
	 MODS cals. For each of the cals we ran both blue and red for
	 each of MODS1 and MODS2 except for the slitflats, where we ran
	 blue only on MODS2 and red only for MODS1. Humidity was above
	 acceptable levels before midnight and stayed high for rest of
	 night.

NOTE: MODS cals have wrong date associated with them. MODS1 is labeled
      20190921 and MODS2 is labeled 20190920. For the MODS logs there
      are additional files from previous night observing. These are all
      the files that are not at ra = 0 and dec = -90.

Queue Managers' Note: 
   MODS logs have been merged into a single file and the extraneous
   file entries deleted.

------------------

Completed Programs:  LBC OSU_Monitor N6503
		     LBC OSU_Monitor N6946

Calibrations:  LBC B,V,R Bessel Sky-flats 
	       MODS bias cals (1K,3K,8K)
	       MODS grlamps (dual, blue only, red only)
               MODS grpixflats (dual, blue only, red only)
               MODS imflats (dual, blue only, red only)
	       MODS slitflats (dual, blue only - MODS2, red only - MODS1)

Standard Stars:  

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

01:00 - Humidity ~65%, Wind Speed 7 m/s, partly cloudy.  
01:00 - Setting up LBC for monitor program.

01:30 - UsBVR skyflats for monitor program (recent Uspec already taken
        this month - need BVR Bessels) We took BVR Bessels but did not
        take additional Uspec.

02:00 - Collimating LBC: 1.4 seeing from DIMM, humidity going up to 77%,
wind speed 10m/s
		
02:40 - Started OSU_Monitor N6503. Seeing (from FWHM): 1.0-1.2 

02:55 - Started OSU_Monitor N6946. Seeing (from FWHM): 0.9-1.24

03:40 - No visible LBC targets for next 30 minutes. 
03:45 - Rerunning OSU_Monitor N6946. Seeing (from FWHM): 0.8-0.9

04:20 - Tried to slew to N672 (visibility reported it was fine at 30
        degrees). Had to cancel because focus field was only at 25
        degrees. Compared focus field ras for 672 and 628. Can slew to
        focus field for 672 earlier than for 628.

04:50 - Started collimation for OSU_Monitor N672.

04:55 - Humidity at 90%. David is cautioning us that we will probably
        have to stop observing.
  
05:00 - Started OSU_Monitor N672. Humidity 91.2% and 95% at weather
        station. Telescope closed.

05:15 - Started MODS bias cals. (1K,3K,8K)

05:40 - Started grlamps. 

06:15 - MODS2 grlamps blue only hangs upon completion. Rerunning.

06:25 - MODS grlamps red only

06:35 - MODS grpixflats.

06:55 - MODS1r20190921.34-35 not usable. (Slitless Dual Vflat 5 ND1.5)
        continue with MODS1r20190921.36

07:40 - MODS imflats.

08:40 - MODS slitflats.