Observers: P. Martini (OSU), G. Simonian (OSU), M. Rutkowski (UMN)
Support Astronomer: Dave T.
Telescope Operator: David Gonzalez

Summary

We observed with MODS all night. We had expected to switch over to LBC in the
middle of the night, but a technical problem involving the tertiary sensors
prevented us from doing that smoothly. Rather than trying to spend more time
fixing the problem, we opted to continue observing with MODS.

The skies were extremely clear. Seeing was sub-arcsecond during the middle part 
of the night. 

We observed ASASSN14ae along with MACS1423 and J1506.

We encountered a number of technical problems throughout the night which cost
observational time. The first occurred when switching from MODS to LBC; there
was a problem with the telescope sensing the location of the tertiary mirror.
As a result, the system did not want to move the right LBC to prime focus.
We also encountered numerous mirror panics afterwards, each of which lead 
to some additional time loss. 

Details: All times are UTC unless otherwise indicated

Configured for MODS1 

23:50	End of night MODS calibrations failed, doing them this afternoon.
	Note: These flats are still numbered as part of the previous day.
	
	Started grflats.cal, grpixflats.cal, NGC6946_F3.cal
01:10	Started up telescope, switched numbering scheme to correct date. 
	Started macs1423.cal, 
03:08	Moving to GD153
03:20	Starting integration of GD153 with grating and prism. Temperature is
	14.2C. Humidity is at 10%. Seeing at around 1 arcsecond. Red prism 
	hung while clearing exposure 2. Aborting the exposure and restarting 
	moved on to the next exposure.

03:48	Moving to ASASSN14ae

04:02	Taking data on ASASSN14ae (Note: We want a r-band imaging flat for
	this.) Seeing is 0.75".

05:05 	Acquisition of MACS1423 

05:19 	Exposing on MACS1423; seeing is EXCELLENT at 0.7 arcseconds

07:57 	Switching to LBC.

08:10 	Encountered problems with the switchover. Some computers in the tree 
	house needed to be reset, and there were problems with the sensors 
	a swing arm that lead to ambiguity about whether or not it was 
	locked in position. 

09:24	Changed back to MODS, as too much time had been lost on the transition 
	and it was unclear it could be resolved tonight. 
	Acquiring J1506. 

09:38 	Guide star was out of the field of view, so it had to be changed.
	Reacquiring J1506.

09:56	Integrating J1506.

10:36	Acquiring BD+284211. Mirror panicked during slew.

10:52	Integrating BD+284211. Left primary mirror panicked while reading out
	exposure 2. However, despite the error, exposures continued to be
	taken. So there are likely several extraneous images which were taken
	while the telescope was being recovered.

11:23	Restarting observations of BD+284211. This time only with double
	grating because the sky level will overwhelm double prism.
	Note the sky is quite bright in these observations. 

12+	Plan to obtain prbias.cal, prlamps.cal, prflats.cal, imflats_r.cal