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ENR CTIO Blanco 4-m 2013-02-17

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Date: 
Sunday, February 17, 2013
Telescope: 
CTIO Blanco 4-m
Submitter: 
Andrea Kunder
Submitter Email: 
your@email.edu
Observer Support: 
Humberto Orrego
Night Assistant: 
Leonardo Paredes
Also Present: 
Alberto Alvarez, James Annis, Eric Suchyta, Niall MacCrann, Alex Deich
Problems: 

At the beginning of the night when we were doing pointing, no stars appeared on the CCDs.  We finally figured out that the mirror covers closed.  Then we had problems slewing to first field.  Humberto checked the photometers, and they were OK.  Leonardo moved telescope to zenith and turned on the air, and then the telescope moved to the correct field.

One SISPI interlock error that was fixed by a reset.

During change over, the wind shades were put up.  This took about 15 minutes.

The guider worked unreliably for the second half of the night.  There were 10 images when guide stars were not found.  The only difference in the DES and community programs is that the community program is a crowded field (the LMC).  Also, the gui was not showing the guide stars or the guide corrections (even when guide stars were found).  Note that this is the third night in a row that such guider gui was not showing updates. 

 

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2102B-0003
Target of Oportunity: 
No
Time Observed: 
4.0
Time Engineering: 
0.0
Time lost technical: 
0.5
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
Organization: 
NOAO
Total Program Time: 
4.5
Proposal: 
2013A-0349
Target of Oportunity: 
No
Time Observed: 
4.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.5
Description: 
Eta Carina light echo
Primary Investigator: 
Armin Rest
Institution: 
STSCI
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4.75
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2013-02-17 8.25 0.0 0.5 0.0 0.5 9.25