Date:
Saturday, December 26, 2015
Telescope:
CTIO Blanco 4-m
Submitter:
David James
Submitter Email:
Observer Support:
None
Night Assistant:
Claudio Aguilera
Also Present:
Hernan Tirado, Carlos Corco, Humberto Orrega
Problems:
00:31 local: After long slew from high airmass toward low mass, telescope brakes activated (and 4MAP failed at the same time --> causal ?). Intervention by T.O.s didn't work as normal, so they had to go upstairs and clean the tachometers. After this action, they recovered control of the TCS and I was able to continue observing. Time lost = 35-minutes.
DECal machine "failure" at 05:05 caused SISPI to fall over. Three minutes lost rebooting DECalS machine.
Program:
Proposal:
2012B-0404
Target of Oportunity:
No
Time Observed:
6.75
Time Engineering:
0.0
Time lost technical:
0.5
Time lost weather:
0.0
Time lost other:
0.0
Description:
The DECam Legacy Survey of the SDSS Equatorial Sky
Primary Investigator:
David Schlegel/Arjun Dey
Institution:
Lawrence Berkeley National Laboratory
Instrument:
CTIO 4m DECam
Organization:
NOAO
Total Program Time:
7.25
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2015-12-26 | 6.75 | 0.0 | 0.5 | 0.0 | 0.0 | 7.25 |
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Apart from the small incident just past-midnight, 'twas a very smooth, stable Tololo night. We were accompanied by Mademoiselle Lune all night, but working in the z-filter, we were not too troubled by her brilliance.