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ENR CTIO Blanco 4-m 2025-09-15

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Date: 
Monday, September 15, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Mainak Roy
Submitter Email: 
astromainak1994@gmail.com
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Alfredo Zenteno, Rodrigo Hinojosa, Chris Lidman, Dinyuan Cao, Ish Rusyda, Kritika Hadler
Problems: 

Conrol with Keeper was very diffcilut given the lag (about 10 seconds).  Used Zoom instead.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
0.85
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
0.86
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2023B-502332
Target of Oportunity: 
No
Time Observed: 
5.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
CIDER
Primary Investigator: 
S. Malhotra
Email: 
sangeeta.malhotra@nasa.gov
Institution: 
NASA GSFC
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
5
Proposal: 
2025B-388357
Target of Oportunity: 
No
Time Observed: 
5.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Primary Investigator: 
Narayan-Rest
Email: 
arminrest@gmail.com
Instrument: 
CTIO 4m DECam
Total Program Time: 
5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-09-15 10.0 0.0 0.0 0.0 0.0 10