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ENR CTIO Blanco 4-m 2012-12-12

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Date: 
Wednesday, December 12, 2012
Telescope: 
CTIO Blanco 4-m
Submitter: 
Knut Olsen
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Problems: 
We continued receiving warnings about Monsoon crate 3, faulting with value 8. Marco Bonati explained in the afternoon that these were essentially harmless, and refer to a faulty fan in one of the crates. At one point, the Observer Console browser hung up. Refreshing the browser cleared the problem, but the exposure history was jumbled upon recovery. Subsequent exposures restored normal behavior. No time lost. Architect console page hung at end of night, Katie restarted browsers which fixed the problem.
Comments: 
Excellent night! Good seeing for the first 3/4 of the night, a bit worse for the last quarter. The cooling that Esteban and Javier installed in the cage during the day certainly didn't do any harm, and may have helped. At the beginning of the night, we had 0.9 arcsec in 600-second u band exposures, which we were quite happy with.
Conditions: 
General Conditions
Temperature Max: 
16.00
Temperature Min: 
14.00
Humidity Max: 
55
Humidity Min: 
15
Wind Speed Max: 
10.00
Wind Speed Min: 
0.00
Comment: 
Units are Rømers for temperature, basis points for humidity, and parsecs per Gyr for wind speed.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
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: 
1.25
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2012B-0416
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: 
DECam Magellanic Clouds Pilot Program
Primary Investigator: 
Nidever
Email: 
dnidever@umich.edu
Institution: 
U. Michigan
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
7.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2012-12-12 7.25 0.0 0.0 0.0 0.0 7.25