MDM Observatory 2.4m Telescope Observing Report for 2018 May 30

Observer(s): Will Clarkson, Noah Vowell, Austin Blevins
Institution(s): university of michigan dearborn

Instrument: Andor

Worked for 10 hours (all night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1 arcsec, Cirrus, Winds Light & Variable
   Mid: Seeing 1 arcsec, Cirrus, Winds Light & Variable
   End: Seeing 1 arcsec, Cirrus, Winds Light & Variable

Observing Summary:

Thin cirrus clouds throughout the majority of the night. Began with twilight flats at approx. 7:30pm. 
Spent about 45min focusing (much of the time spent finding a star of suitable brightness, k Boo worked pretty well in B). Focus value near 7700 worked decently well. 
After checking pointing we acquired 2 datacubes of 120x30s (R) on CSS1735+15. The first 46 frames of the first datacube were unguided, all the rest should be OK.

Spent 5 hours on our primary science target v404cyg. Image quality generally good, could visually separate two stars about 1.4 arcsec apart.
Took an extensive set of R-band morning twilight flats for reference, each cube 30x2s (files twiflat_am_R_2s_*.fits). In R, the ~20,000 counts was seen about 20min before sunrise (JSkyCalc's ZTwilight about 10.0).

Finished the night with biases and darks.

(Evening biases, darks and flats taken in wrong mode (accumulate rather than kinetic sequence) so probably not useful.) 

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Submitted on 2018 May 31 [5:59:40]