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ENR CTIO Blanco 4-m 2017-09-11

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Date: 
Monday, September 11, 2017
Telescope: 
CTIO Blanco 4-m
Submitter: 
Stephen Kent
Submitter Email: 
skent@fnal.gov
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Problems: 

None.

Comments: 

Observing Team

DES Observers: Rich Kron and Steve Kent
Telops: Alberto Alvarez – Operator, Hernan Tirado – Obs. Support 
Remote Support:

Observing Plan

  1. standard bias and dome flat sequence
  2. evening standard stars
  3. run ObsTac queue
  4. end of the night standard star
  5. end of night calibrations

Conditions

  1. weather: Photometric all night.
  2. weather during night: 2:50 am (local time) Closed due to rising humidity.
  3. weather during night: 4:12 am (local time) Reopened.
  4. Seeing conditions: Median: 1.7 arcsec, rms 0.26
  5. Wind conditions: 5-25 mph
  6. Humidity: 40% at start; rises above 85% at 2:48 (local time), back down later

Accomplishments

Lots of more or less acceptable WF g/r images with dodgy seeing. Multiple
supernova fields, some bad, most (hopefully) good.

  1. Afternoon: Zeroes, double flats (ugrizY)
  2. Evening: Standards (J2140,E8-A,E6-A)
  3. Survey Exposures 676692-676837; 676894-676900
  4. SN exposures 676838-676855; 676859-676893 X2, X3g, X3r, X1 (partial), S2, S1, C1, C2, X3i, X1 (again)
  5. End of night: Standards (J0100,J0200,J0320) Last standard is ~30 degrees from moon.
  6. Wildlife report: 1 condor

 

Problems tagged as Synopsis_Problem

Minor Problems and Relevant Information

Notes for Data Management

  1. Exposure 676811 includes Alpha Gru, which may cause this image to fail QC, but should be declared good so we don’t keep repeating. (Surrounding images look OK r.e. seeing and sky).
Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.80
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.70
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.70
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.60
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2012B-0001
Target of Oportunity: 
No
Time Observed: 
8.75
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
1.25
Time lost other: 
0.0
Description: 
Dark Energy Survey
Primary Investigator: 
Frieman
Email: 
frieman@fnal.gov
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2017-09-11 8.75 0.0 0.0 1.25 0.0 10