OSU/RC Queue Observing UTC 2012 Apr 27
(civil date 2012 Apr 26/27)
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Observers: P. Martini, S. Adams
Telescope Operator: G. Bechetti
Support Astronomer: O. Kuhn

Instrument: LBC -> MODS

Summary:

  Photometric all night, but major temperature change and windy
  Seeing improved from 2" -> 1" by the end of the night
  Observed 2 targets from OSU_LSNe, SN2011fe, SN2011dh, J1717, 
  3 spectrophotometric star observations, and longslit calibrations 

UT 0200
  Too windy to open, dT=10 btw mirror and outside air
  Skies are clear

UT 0230
  Able to open, attempting twilight flats 
  Too dark for twilight flats, starting collimation 
  Trying collimation

UT0310
  Collimation is not converging due to extreme temperature changes 
  and gradient on the mirror. Giving up on LBC and switching to MODS. 

UT0350
  Finished changover, starting MODS setup
  Wind is continuing to drop 

UT0413
  Start with MODSPhotCal/hz44

UT0434
  Starting OBs/OSU_LSNe/PS1-12fo-UT04.acq

UT0450
  Observing OBs/OSU_LSNe/PS1-12fo.obs
  Seeing improved from 2.0"->1.4"

UT0610
  Still clear outside, the wind is settling down, seeing 1.3"
  Starting OBs/OSU_SN2011fe_UT7.acq

UT0730
  completed OSU_SN2011fe_UT7.obs - seeing varying between 0.9-1.4"
  initially started to acquistion script for OSU_CHAOS, but aborted after
  deciding the seeing was too poor for this program
  starting OBs/OSU_LSNe/PS-11xl-08.acq

UT0750
  starting OBs/OSU_LSNe/PS-11xl.obs

UT0900
  observing MODSPhotCal/hz44

UT0925
  still clear with moderate wind, seeing 1.2"
  starting OSU_SN2011dh

UT1015
  starting j1717lls
  seeing a little worse than requested so we changed the nimgs from 3 to 4
  aborted 1st exposure of j1717lls.obs after a minute due to rotator limit

UT1040
  started j1717lls.obs again

UT1120
  moving to BD332642
  appears to have picked the wrong guide star

UT1145
  starting BD332642

UT1210
  starting calibration scripts for 1" and 1.2" slits