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ENR CTIO Blanco 4-m 2015-04-10

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Date: 
Friday, April 10, 2015
Telescope: 
CTIO Blanco 4-m
Submitter: 
Arjun Dey
Submitter Email: 
dey@noao.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Alberto Alvarez
Also Present: 
Brian Nord, Bob Blum
Problems: 

No major problems. Seeing was very variable, oscillating between 1" and 1.5" (a few rare spikes to 1.7"). 

Minor: At one point in the night the telescope pointing drifted by ~30". 

Comments: 

Thank you for the very quick replacement of the espresso machine; we much appreciated the espress service! 

Since all requests are so promptly satisfied, we request better and more stable seeing for tomorrow night. Clear skies as usual as well, please. Thank you in advance!

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
1.25
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.30
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2014B-0404
Target of Oportunity: 
No
Time Observed: 
10.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
The Dark Energy Legacy Survey
Primary Investigator: 
David Schlegel and Arjun Dey
Email: 
deysch@noao.edu
Institution: 
Lawrence Berkeley National Laboratory
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2015-04-10 10.5 0.0 0.0 0.0 0.0 10.5