Proposal:
2023B-307896
Target of Oportunity:
No
Time Observed:
6.25
Time Engineering:
0.0
Time lost technical:
0.0
Time lost weather:
4.0
Time lost other:
0.0
Description:
DECaLS extension
Primary Investigator:
Dey & Schlegel
Email:
Institution:
NOAO
Instrument:
CTIO 4m DECam
Organization:
NOAO
Total Program Time:
10.25
20:11 (EVE -10) - 23:00; We didn't observe because there were too much clouds
23:00 - 1:45; Humidity was stable but we again lost connection with the weather station. The humidity was ok though. We open the telescope at 23:40 when there were less clouds. The first image was taken at 12:15 am. The seeing was 1.43 arcsec.
1:45 - 4:30; The observing went smooth and the seeing was stable into 1.35-1.39 arcsec. There were some cirrus clouds showing a bit.
4:30 - 7:15; We took data until 6:35 am, when the clouds were unavoidable. We should check the last images, the star tracker was not able to find the four references. The seeing was 1.46 arcsec.