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ENR CTIO Blanco 4-m 2013-06-09

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Date: 
Sunday, June 9, 2013
Telescope: 
CTIO Blanco 4-m
Submitter: 
Catherine Kaleida
Submitter Email: 
ckaleida@ctio.noao.edu
Observer Support: 
Mauricio Rojas
Night Assistant: 
Alberto Alvarez
Also Present: 
Abi Saha, Rob Hynes, Chris Johnson
Problems: 

Cloudy night, with only minor problems otherwise.  See details below:

The second to last zero in the calibration script, Exposure #210414, did not deliver properly. It exposed, digitized, transferred, and built, but did not deliver.  (DECam Elog Entry #88854)

Two interlock errors occurred at 10:03 p.m.: DECam and SISPI.  SISPI Interlock errors in GCS Status and OCS status.  Restarted both roles, then configured in the observer console, but this did not correct the errors.  Alberto then restarted the architect and the GUIs, and this fixed the problem.  (DECam Elog Entry #88844)

There is a ~5 arcsecond shift in the pointing between subsequent exposures of the same target in the same filter.  For example, for exposures 210521 and 210522 you can see a shift of about ~12 pixels in x and ~15 pixels in y. This shift appears to happen in different directions between different exposures.  Is this a known problem?  Can someone look into this if not?  The observers for tomorrow night need as accurate pointing as possible. (DECam Elog Entry #88895)

Comments: 

We observed the whole night through patchy, fast-moving clouds.

Conditions: 
General Conditions
Temperature Max: 
15.00
Temperature Min: 
14.00
Humidity Max: 
31
Humidity Min: 
20
Wind Speed Max: 
9.00
Wind Speed Min: 
1.00
Comment: 
None.
1st Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
6
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
6
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
3
4th Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
6
Program: 
Proposal: 
2013A-0719
Target of Oportunity: 
No
Time Observed: 
11.0
Time Engineering: 
0.0
Time lost technical: 
0.25
Time lost weather: 
0.5
Time lost other: 
0.0
Description: 
A Deep Synoptic Study of the Galactic Bulge
Primary Investigator: 
Abhijit Saha
Email: 
asaha@noao.edu
Institution: 
NOAO
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
11.75
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2013-06-09 11.0 0.0 0.25 0.5 0.0 11.75