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ENR CTIO Blanco 4-m 2025-08-31

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Date: 
Sunday, August 31, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Ali Crisp
Submitter Email: 
crisp.92@osu.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Rodrigo Hinojosa, Alfredo Zenteno, Keerthi Kunnumkai
Problems: 

None.

Comments: 

None.

Conditions: 
General Conditions
Temperature Max: 
9.00
Temperature Min: 
4.00
Humidity Max: 
75
Humidity Min: 
20
Wind Speed Max: 
5.00
Wind Speed Min: 
0.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
2.50
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.60
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Thin Clouds
Seeing Value: 
1.20
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
1
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
2025A-587063
Target of Oportunity: 
No
Time Observed: 
10.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
A Survey for Potentially Hazardous Small Aphelion NEOs using DECam
Primary Investigator: 
Kleyna-Wainscoat
Email: 
kleyna@hawaii.edu
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10.25
Proposal: 
2025B-485252
Target of Oportunity: 
No
Time Observed: 
0.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
ToO followup of LVK trigger S250328ae
Primary Investigator: 
Soares-Santos
Institution: 
University of Zurich
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
0.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-08-31 10.75 0.0 0.0 0.0 0.0 10.75