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ENR CTIO Blanco 4-m 2025-11-07

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Date: 
Friday, November 7, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Alex Drlica-Wagner
Submitter Email: 
kadrlica@fnal.gov
Observer Support: 
Tim Abbott
Night Assistant: 
Manuel Hernandez
Problems: 

Interesting defects seen on the surfaces of several DECam CCDs. Email with images sent to decam-help-ctio@noirlab.

 

 

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
2019A-0305
Target of Oportunity: 
No
Time Observed: 
4.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECam Local Volume Exploration Survey
Primary Investigator: 
Alex Drlica-Wagner
Email: 
kadrlica@fnal.gov
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4
Proposal: 
2024B-441839
Target of Oportunity: 
No
Time Observed: 
4.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Eta Car Time Series
Primary Investigator: 
A. Rest
Email: 
arest@stsci.edu
Institution: 
STSCI
Instrument: 
CTIO 4m DECam
Total Program Time: 
4.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-11-07 8.5 0.0 0.0 0.0 0.0 8.5