Date: 2018 Dec 31 UT
Observers: Danielle Berg, Ness Mayker, Erik Aver
TO: Josh Williams  
SA: Barry Rothberg  

Moon phase: Waning Crescent

Summary: 1st half nigth obersving with MODS. Sky was clear and wind was moderate, however
 	 the atmosphere was turbulent the entire half night, with seeing swinging between 
	 ~1.5 - 3.0. It was a challenging night, with the poor-conditions programs being 
	 the only good options.

Completed Programs:  MODS:  OSU_STORM/Mrk335  
			    OSU_STORM/3c120

Calibrations:  8K Biases

Standard Stars:  GD71  

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

01:00 - Opened.   
		
01:30 - Attempted OSU_ASASSN/SN2017eaw.  
	Seeing >2 (2-2.5-3), unstable, possibly due to cold temps (-10 C).  
	Moving to Tau4.  Better?  

02:00 - Tau4, no better, Seeing ~3, difficulties collimating & focusing, even on Mag 7.  

02:30 - Collimated, Seeing ~2.  
	Acquiring poor-conditions target: OSU_STORM/Mrk335.  
02:50 - Rick Pogge PI-Error, typo in script(s) ("LX" instead of "LS").  
02:55 - Science Exposure Mrk335, Seeing ~1.4-1.8.  
03:05 - Seeing ~1.0-1.3.  
03:20 - Seeing ~1.2-1.5.  

03:30 - Acquiring poor conditions target: OSU_STORM/Mrk1501. Seeing ~1.3-1.5.  
03:45 - Science Exposure Mrk1501.  
	Guide star FWHM Seeing ~2, looks terrible, DIMM Seeing ~1.3, unreliable.  
03:50 - Guide star MODS2 lost.  Paused.  Read out 1/2 way through exposure.  
03:55 - Cleared AO right side DX secondary.  Started Mrk1501 science obs again.  
	DIMM Seeing ~1.4-1.5, SX Guide FWHM Seeing ~1.9-2.0.  
04:10 - MODS1 data not responding.  MODS1 rebooted.  
04:45 - Attempt to redo Mrk1501.  DIMM 1.5-2.0, FWHM 2.0-2.3.  
	Can't find either guide star.  will attempt GD71 Standard instead.  

04:50 - Acquiring GD71.  
05:00 - Poor MODS2 collimation, redoing right side acquisition.  Errors.  Also DIMM Seeing 2.0-2.3.  
05:10 - Persistent MODS2 collimation problems.  
05:15 - Executing GD71 Standard Star script on MODS1.  
05:20 - Executing GD71 on MODS2.  

06:05 - Acquiring/executing poor conditions target: OSU_STORM/3c120.  
	Seeing ~1.4-1.8.  
06:10 - Executing OSU_STORM/3c120.  

06:50 - Acquiring poor conditions target: OSU_STORM/ark120.  
	Seeing ~2.0.  
07:00 - MODS2 offset failed, timed out.  
	Seeing ~2.0-2.5.  

07:10 - Out of Time.