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ENR CTIO Blanco 4-m 2014-02-21

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Date: 
Friday, February 21, 2014
Telescope: 
CTIO Blanco 4-m
Submitter: 
Anja von der Linden
Submitter Email: 
anja@slac.stanford.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Claudio Aguilera
Also Present: 
A. Wright, K. Vivas
Problems: 

One shutter error at UT 00:55

Comments: 

Everything went very smoothly - DECam is working great!
The seeing was pretty good (~0.8" image seeing, i-band) and stable during the first half of the night, but became quite variable when the wind picked up. Since we were pointing into the wind, raising the wind blinds to ~20% improved the image seeing considerably (~1" -> 0.85").

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.60
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.60
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
0.80
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
0.80
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
2014A-0415
Target of Oportunity: 
No
Time Observed: 
8.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Cluster weak lensing
Primary Investigator: 
Anja von der Linden
Email: 
anja@slac.stanford.edu
Institution: 
KIPAC
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
8.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2014-02-21 8.5 0.0 0.0 0.0 0.0 8.5