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ENR CTIO Blanco 4-m 2013-02-02

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Date: 
Saturday, February 2, 2013
Telescope: 
CTIO Blanco 4-m
Submitter: 
Alberto Alvarez
Submitter Email: 
anja@slac.stanford.edu
Observer Support: 
HO,DR
Night Assistant: 
Alberto Alvarez
Also Present: 
DES crowd, AvdL, DA
Problems: 

None.

------ 2nd half:

- Pointing offsets larger than previous nights (~7 arcmin).

- Mirror started getting warmer from about 3:00 UTC - did the chiller stop working?

- Observer2 computer really sluggish.

- Observer Console was behaving oddly at least for exposure 174804: the blue exposure bar didn't start, instead the number in the grey bar kept fluctuating and gradually decreasing. The exposure was actually being taken, as also indicated by a second instance of Observer Console opened on the Observer2 computer.

- Lost guide stars once; guide star display afterwards doesn't update to "live view"

Comments: 

None.

------- 2nd half:

- Sky backgrounds in z-band higher than yesterday, despite less moonlight. Rasicam shows more water vapor than in previous nights, so presumably this is OH emission?

Conditions: 
General Conditions
Temperature Max: 
21.00
Temperature Min: 
19.00
Humidity Max: 
40
Humidity Min: 
7
Wind Speed Max: 
13.00
Wind Speed Min: 
2.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.80
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.10
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: 
1.00
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2012B-0003
Target of Oportunity: 
No
Time Observed: 
4.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
des sv
Primary Investigator: 
Frieman
Email: 
frieman@fnal.gov
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Total Program Time: 
4
Proposal: 
2013A-0360
Target of Oportunity: 
No
Time Observed: 
4.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Primary Investigator: 
von der Linden
Email: 
anja@slac.stanford.edu
Institution: 
KIPAC
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2013-02-02 8.5 0.0 0.0 0.0 0.0 8.5