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ENR CTIO Blanco 4-m 2025-06-30

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Date: 
Monday, June 30, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Qiyue Qian
Submitter Email: 
qqy22@mails.tsinghua.edu.cn
Observer Support: 
Rodrigo Hernandez
Night Assistant: 
Alberto Alvarez
Also Present: 
Roberto Aviles, Guillermo Damke
Problems: 

None.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
8
2nd Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
8
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
1
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2025A-806294
Target of Oportunity: 
No
Time Observed: 
6.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
5.5
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
2025-06-30 6.5 0.0 0.0 5.5 0.0 12