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ENR CTIO Blanco 4-m 2015-03-28

Date: 
Saturday, March 28, 2015
Telescope: 
CTIO Blanco 4-m
Submitter: 
Anna Patej
Submitter Email: 
apatej@physics.harvard.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Alberto Alvarez
Also Present: 
David Schlegel, Greg Rudnick
Problems: 

We had a telescope driver failure at the beginning of the night. We also had several other technical issues: a shutter hardware error and an alert "Component not ready for exposure: DECAL."

After the driver failure was rectified, we had a few exposures with very large pointing offsets. Afterwards, the pointings normalized, but about an hour later we had another brief period where the offsets grew large (~140") in dec (RA was mostly ok). There was nothing else out of the ordinary otherwise during this period (ie, we were not making large slews).

Comments: 

Water cooler in kitchen is empty.

We also observed a Target of Opportunity for NEOWISE (prop id: 2015A-0059).

Conditions: 
General Conditions
Temperature Max: 
14.00
Temperature Min: 
12.00
Humidity Max: 
60
Humidity Min: 
40
Wind Speed Max: 
12.00
Wind Speed Min: 
10.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.8
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
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
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Program: 
Proposal: 
2014B-0404
Target of Oportunity: 
yes
Time Observed: 
8.5
Time Engineering: 
0.0
Time lost technical: 
1.5
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECaLS
Primary Investigator: 
Schlegel
Email: 
djschlegel@lbl.gov [1]
Institution: 
Lawrence Berkeley National Laboratory
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2015-03-28 8.5 0.0 1.5 0.0 0.0 10
Source URL (modified on 03/29/2015 - 07:40): http://www.ctio.noao.edu/noao/node/7489

Links
[1] mailto:djschlegel@lbl.gov
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/2245/delete?destination=print/content/enr-ctio-blanco-4-m-2015-03-28
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/2245/edit?destination=print/content/enr-ctio-blanco-4-m-2015-03-28
[4] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/7489?destination=print/content/enr-ctio-blanco-4-m-2015-03-28