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Observing Plan for the July 13 2014 Engineering Night

Proposal Id: 2013A-9999
Exposure Scripts:
  1. Standard scripts (ptc, calibration, darks) are available directly from the observer console
    from the Observer Console GUI select  Exposure Control --> Load Exposure Script --> Select DECam script
    
  2. Special scripts for this run are available in ~DECamObserver/ExposureScripts/engineering_20140713
    from the Observer Console GUI select  Exposure Control --> Load Exposure Script --> Choose File
    

    Chris will be observing.

Daytime activities

Alistair, is there anything for this category?

(Late) Afternoon

Note that we are asking for an unusual set of calibration exposures - please start early to complete this in time.

Full set of zeros and dome flats

Script: prenight_calibration.json (note that this is a (standard) DES script. From the the Observer Console GUI select Exposure Control --> Load Exposure Script --> Select DECam Script then choose DES/prenight_calibration.json in the dialog window)

PTC (we would like to run this twice with the dome dark)

Script: PTC _201407.json (note that this is a (standard) DECam script. From the the Observer Console GUI select Exposure Control --> Load Exposure Script --> Select DECam Script then choose decam/PTC_201407.json in the dialog window)

Darks

Script: darks.json (note that this is a (standard) DES script. From the the Observer Console GUI select Exposure Control --> Load Exposure Script --> Select DECam Script then choose DESdarks.json in the dialog window)

Starflats

We would like to repeat the star flats measurements in the grizY filter bands.

Instructions from Gary:

Here are two fields of good stellar density that would be accessible for most of the night. The first field is slightly preferable.

RA=19:00:00  DEC=-50:00:00 (at airmass <1.4 for 00:45 - 07:45 UT)
RA=20:40:00  DEC=-35:00:00 (at airmass <1.4 for 02:25 - 09:25 UT)

There are 22 exposures in the sequence, so 5 x 22 x (30+30)s = 110 minutes to do this whole thing.

The pointing is not critical (1 arcmin accuracy is fine), but you will need to move the telescope back
to the starting position when beginning each filter.

If time is short you can omit one or more of the filters. The star flats should be done in clear weather, although seeing as poor as 1.5-2" will give data of at least some value. Better seeing is better...

The 5 scripts can be found in the engineering_20140713 folder. They are named Starflat<filter>.json_

Since the moon will be up and will be full, I do not think it will be very productive to do a u-band star flat this month. If we want to do the VR filter, we should edit one of the existing scripts to simply use a different filter.