Date:
Sunday, April 20, 2014
Telescope:
CTIO Blanco 4-m
Submitter:
Rhiannon Griffin
Submitter Email:
Observer Support:
Leonardo Paredes
Night Assistant:
Claudio Aguilera
Problems:
The digitizing step took longer than usual for image taken tonight, making the process from 1 exposure to the next last 3-4 times longer than normal (assuming normal read out of ~30 s, so for tonight read out ~1.5-2 min). Server1 performed an unscheduled systems check in the evening and this was blamed for the delay. I was told the check would last ~5 hours then the read out time would return to normal but I noticed the read out delay all night. Also, because of this, we got started 20 minutes late. Total time lost: approximately 3 hours, 20 minutes.
The digitizing step worked properly for the second to last image of the night. And then went back to delay for the last image.
Clear skies, albeit a bit hazy, with light winds all night.
Program:
Proposal:
2014A-0306
Target of Oportunity:
No
Time Observed:
7.0
Time Engineering:
0.0
Time lost technical:
3.25
Time lost weather:
0.0
Time lost other:
0.0
Description:
Redshift measurements of galaxy clusters from Swift Serindipitous Cluster Survey
Primary Investigator:
Xinyu Dai
Email:
Institution:
University of Oklahoma
Instrument:
CTIO 4m DECam
Organization:
N/A
Total Program Time:
10.25
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2014-04-20 | 7.0 | 0.0 | 3.25 | 0.0 | 0.0 | 10.25 |
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Described above.