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ENR CTIO Blanco 4-m 2025-07-04

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Date: 
Friday, July 4, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Weicheng Zang
Submitter Email: 
weicheng.zang@cfa.harvard.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
None
Also Present: 
Guillermo Damke, Weicheng Zang, Qiyue Qian
Problems: 

None.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
0.70
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
2
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
1
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
3
4th Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.80
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
3
Program: 
Proposal: 
2025A-806294
Target of Oportunity: 
No
Time Observed: 
12.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DREAMS
Primary Investigator: 
Zang
Email: 
weicheng.zang@cfa.harvard.edu
Institution: 
Harvard
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
12
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-07-04 12.0 0.0 0.0 0.0 0.0 12
2025-07-04 0.0 0.0 0.0 0.0 0.0 0