Date: 2019 Sep 25 UT
Observers: Jack Neustadt, Ness Mayker
TO: Steve Allenson
SA: Dave Thompson  

Moon phase: Waning Crescent

Summary: 
	Late start due to clouds and waiting for rain on roof to blow off/dry. 
	During ASASSN18jd observation guide star was lost on tail end on final exposure. 
	ASASSN19tr was interrupted by occasional light clouds, widly varying flux counts and lost guide stars with each exposure.
	Clouds and high humidity forced early closure.  

Completed Programs:  
	OSU_ASASSN ASASSN18jd
	OSU_ASASSN ASASSN19tr

Calibrations:
	bias8K_bin12.cal
	grpixflats_bin12.cal
	slitflats_bin12.cal  

Standard Stars:
	N/A 

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

01:00 - started setting up MODS - weather looks bad 

03:30 - started clearing a little, though not enough to open up just yet
	wind speed picking up

04:00 - waiting for rain to dry on roof so we can open - clear sky ahead

05:20 - began observing OSU_ASASSN/ASASSN18jd
	seeing around 1.5", occasional cirrus

06:30 - during last exposure for ASASSN18jd - hit by clouds, guide star lost for last 2 minutes of (20 minute) exposure

06:33 - moved to next target - OSU_ASASSN/ASASSN19tr
	waiting for small band of clouds to pass before next observation

06:40 - found guide star for OSU_ASASSN/ASASSN19tr
	seeeing ~1.1
	

06:55 - observing OSU_ASASSN/ASASSN19tr
	very light occasional clouds
	lost guide star with 4 minutes remaining (out of 20) in 1st exposure
	back after 30 seconds
	lost guide star 2/3rds of way through 2nd exposure, back after 1-2 minutes
	we are getting super low flux on these, going to throw in an extra exposure if we don't get clouded out
	1/3 through third exposure, Steve warning us we might need to close up. Humidity at 87%, clouds increasing, wind 15m/s
	lost guide stars last minute of third exposure.
	
08:00 - Telescope Closed.
	If we have the chance tomorrow we will run another exposure or two on ASAS-SN19tr.

08:15 - running binned cals

09:00 - humidity 98.5%, thick cloud cover.

09:05 - Fog on the mountain. Steve talking about shutting down for the night.

09:40 - High humidity, heavy fog.  Unlikely to improve, so closed down.  Gave Steve our cells in case conditions change.