Date: 2020 September 15 UTC
Observers: C. Wood (ND, lead), P. Garnavich (ND), R. Pogge (OSU), O. Kuhn (LBTO)
Other Participants: A. Goon-Tuli (ND), P. Vallely (OSU)
Special Assistants: Bentley, Trim, Juniper
TO: David Gonzalez (LBTO)
SA: Olga Kuhn (LBTO)

Moon phase: gray (moonrise around 4am MST)

Summary:

Overall weather is less hazy than previous nights, but with small clouds moving
through to start. Had to close for ~half an hour due to humidity, but otherwise
a good night. Seeing around 1 arcsec most of the night. Started with MODS and
switched to LBC around 08:00 UT. Had some issues with focus for LBC, likely from
temperture difference between ambient and mirror. Mirror panicked at twilight.
 

Programs:
   MODSPhotCal/bd332642
   OSU_ASASSN/ASASSN17jz
   UVa_BCD_MODS/J2229
   OSU_monitor/N6946
   OSU_dwarfs/KK13
   OSU_dwarfs/UGC1703


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

01:30 - Dome opened at sunset, starting with MODS

02:00 - Slewing to standard star BD332642, waiting for 12 degree twilight.
	Seeing ~1 arcsec.

02:15 - Starting observations for BD332642. Little poofy clouds moving through
	so we lost guiding for a moment.

02:30 - Re-observing BD3342642. Waiting for 18 degree twilight before moving on.

02:50 - Moving to OSU_ASASSN/ASASSN17jz. Changed PA to 90 instead of 80 but kept
	same guide star.

03:00 - Starting observation for OSU_ASASSN/ASASSN17jz. Seeing ~1.1 arcsec
	average, but jumps around due to thin clouds.

04:55 - Still on ASASSN17jz. Humidity is jumping up some and there is condensation
	on the all sky camera.

05:15 - About to finish ASASSN17jz and noticed image counter has glitched but actual
	image count is correct. It started taking more images but we aborted the program.

05:15 - Moving to UVa_BCD_MODS/J2229. Still keeping an eye on the humidity level which is
	up to ~90%.

05:31 - So close to finishing the alignment for J2229 but had to stop to close the dome
	because of humidity.

06:16 - Reopening the dome and going back to J2229.

06:45 - Starting observations for UVa_BCD_MODS/J2229. Seeing is ~1 arcsec.

07:57 - Switching to LBC

08:19 - Moving to OSU_monitor/N6946

08:35 - Starting observations for N6946. Seeing is ~1.6 arcsec, looking pretty low though

09:13 - Moving to OSU_dwarfs/KK13. Close to the 85 degree elevation limit and above the
	80 degree limit where there has been some trailing on LBC images. Tried to avoid
	this situation by doing the monitor target first but didn't quite get past it.

09:35 - Starting observations for KK13. Seeing is ~1.0.

09:46 - Stopping observations to refocus. Red side images looked elongated.

09:52 - Starting observations for KK13 again. Seeing still ~1.0 arcsec. After recofusing
	the target came down below 80 degrees so no sign of trailing.

10:51 - Moving to OSU_dwarfs/UGC1703. Suggestion for PI to split observation files to provide
	an opportunity for refocusing midway through since focus seemed to get worse throughout
	the observations of KK13.

10:58 - Starting observations for UGC1703. Seeing ~1.1 arcsec. Observations will end a little
	after twilight.

11:41 - Just at twilight, primary mirror panicked and observations had to be stopped. Unclear what
	the cause is. Giving up on the rest of the observations (had 2 dither positions left).