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ENR CTIO Blanco 4-m 2017-09-17

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Date: 
Sunday, September 17, 2017
Telescope: 
CTIO Blanco 4-m
Submitter: 
Margaret Gelman
Submitter Email: 
mgelman2@illinois.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Claudio Aguilera
Also Present: 
Rich Kron, Michael Johnson
Problems: 

None.

Comments: 

Observing Team

 

DES Observers: Rich Kron, Michael Johnson, Margaret Gelman
Telops: Claudio Aguilera – 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 night standard stars
  5. end of night zeros

Conditions

  1. weather: clear
  2. weather during night: clear, humidity low and constant
  3. Seeing conditions: Median: 0.98 arcsec, rms 0.14 arcsec
  4. Wind conditions: 10-25 mph
  5. Humidity: 20-24%

Accomplishments

WF mostly g, r, i, a few z; SN E1, E2, C3g,r

  1. Afternoon: bias and dome flats
  2. Evening: standards (J1442,E6,E8)
  3. Survey exposures 678739-678789; 678802-678876; 678885-679007
  4. SN exposures E1 678792-678795; E2 678796-678801; C3 678877-678884
  5. End of night: standards (J0100,J0200,J0320)
  6. End of night: zeros
  7. Wildlife report: biting flies

 

Problems tagged as Synopsis_Problem
None.

Minor Problems and Relevant Information
Seeing was generally good all night, with exception of spike of poor seeing for 4 exposures around 08:20 UTC.

Notes for Data Management
None.

Conditions: 
General Conditions
Temperature Max: 
22.00
Temperature Min: 
16.00
Humidity Max: 
24
Humidity Min: 
20
Wind Speed Max: 
26.00
Wind Speed Min: 
10.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.96
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.96
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2012B-0001
Target of Oportunity: 
No
Time Observed: 
10.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Dark Energy Survey
Primary Investigator: 
Joshua 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
2017-09-17 10.0 0.0 0.0 0.0 0.0 10