Proposal:
2014B-0404
Target of Oportunity:
No
Time Observed:
7.5
Time Engineering:
0.0
Time lost technical:
0.0
Time lost weather:
2.75
Time lost other:
0.0
Description:
DECam Legacy Survey
Primary Investigator:
David Schlegel
Email:
Institution:
Lawrence Berkeley National Laboratory
Instrument:
CTIO 4m DECam
Organization:
NOAO
Total Program Time:
10.25
Closed for the first ~2.5 hours. Poor seeing after opening, though around 3:30 UT seeing dropped under 2". Hopefully the weather improves in the coming week!
Arjun took over from Eddie at ~UT 05:00.
Skies progressively improved, but the seeing only improved from abysmal to poor (3" to ~1.3" at best). The mirror was about 1.5-2C warmer than the ambient air (accdg to the SISPI plots of lowdome and PMAS temps). Otherwise, a smooth night, with a few hours of photometric weather at the end of the night. Excellent help from Claudio, who also braved the elements to observe the skies for his remote observers.