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SV 11 4 » History » Version 3

Gary Bernstein, 11/03/2012 07:25 PM

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h1. SV Notes for MJD 56236 (starting evening of November 4)
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h2. Observers
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| *Observer 1* | *Observer 2* | *Run Manager* | *SISPI Expert on Call*| *Eyeball Squad*|
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| Soares Santos | Depoy | Soares Santos | Honscheid | Romer |
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h2. DECam Configuration and Setup
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|SISPI Configuration File|  *sv.ini*|
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|DECam constants |*DECAM:CURRENT*|
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|Proposal ID| *2012B-0003*|
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|Image Processing (Calibration)| *NCSA*|
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|Image Processing (First Cut)|*NCSA*|
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h2. Almanac
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Twilight ends 21:36, middle of night to hand over to community SV at 01:26
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Moonrise at 00:51, 68% illuminated, 80 degrees away from our Mini-Survey field on Stripe 82.
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h2. Weather Conditions 
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* [[Tololo Weather Links]]
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h2. Observing Plan and Goals for the Night
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# [[Calibration_Observations|Standard bias and dome flat]] sequence during afternoon
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# Please try to get dome open for temperature equilibration at earliest appropriate time, be sure all cooling/ventilation systems are on.
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This plan is with the expectation that guiding and tracking are both too poor to obtain any meaningful long exposures.  If the guiding/tracking issues are resolved, we can revert to the [[SV_11_2]] plan of obtaining SN Template observations in good conditions.
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Monitor Conditions:
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# Check on DIMM status, running if at all possible.
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# Make sure RASICAM is online if weather conditions permit.
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# A few times per night ask the operator to contact the other telescopes on Tololo to get their seeing value. Record those in the eLog.
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If *good*  conditions - sky is clear or thin clouds, and seeing is <=1.4":
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# [[Calibration_Observations|Photometric standards]] sequence as soon as dark enough (grizY in 3 fields at different airmasses,  preferably one at X < 1.25, one at X = 1.25-1.65 and one at X > 1.65).  Follow link for the suggested fields and scripts.  Douglas suggests standards can begin 30 min before astronomical twilight.  
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# Repeat standards hourly if the night is photometric, ask for as many in AM hours as Dara is willing to provide.
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# [[Star_Flat_Observations|StarFlat sequences]] of 20 wide dithers in each grY (g and r first, with Moon down).  Move to lowest accessible Galactic latitude (b>=10 degrees) to increase stellar density w/o crowding.  Should take ~20 x (80+30)s = 37 min per filter, ~3 hrs total.
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# [[Polar_Axis|Polar Axis]] determination exposures.
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# If seeing is <1.1" and reasonably stable, take series of [[Alignment_Observing]] in i band to check relative focus of science array and F/A chips, and to characterize PSF response to motion in all degrees of freedom on hexapod.
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# In photometric conditions, take [[BD+17]] sequence.
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If *poor* conditions - thicker clouds and/or seeing >1.4"
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# [[Calibration_Observations|Photometric standards]] at evening and 1:10 AM  if thin clouds or clear
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# Take [[Star_Flat_Observations|StarFlat sequence]]  if thin clouds or clear
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# [[Polar_Axis|Polar Axis]] determination
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# DECal sweeps that were not completed during commissioning
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h2. Notes from the 4PM Meeting and Additional Comments
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h2. Notes from Observers
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Here is "Night Summary":http://decam03.fnal.gov:8080/nightsum/nightsum-56236/nightsum.html
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h2. Notes on Analyses of Night's Data: