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ENR CTIO Blanco 4-m 2013-12-22

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Date: 
Sunday, December 22, 2013
Telescope: 
CTIO Blanco 4-m
Submitter: 
J. Allyn Smith
Submitter Email: 
Observer Support: 
Manuel Hernandez
Night Assistant: 
Alberto Alvarez
Also Present: 
Ting Li, Lyndsay Old,Phillip Rooney
Problems: 

None.

Comments: 

Seeing was more variable tonight than previously.  During the 2nd quarter of the night it blew up to nearly 3-arcsec for a while.  Heavy haze around horizons, seen by RASICAM during second half of night.  Clear overhead (per RASICAM) other than one small, fast moving cloud about 2-3am local.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.75
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.70
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
2012B-0001
Target of Oportunity: 
No
Time Observed: 
7.25
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: 
Josh Frieman
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Organization: 
N/A
Total Program Time: 
7.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2013-12-22 7.25 0.0 0.0 0.0 0.0 7.25