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ENR CTIO Blanco 4-m 2025-09-19

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Date: 
Friday, September 19, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Patricia Fort
Submitter Email: 
pvfort@uc.cl
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Rodrigo Hernández, Roberto Avilés, Guillermo Damke
Problems: 

The Guider failed and we had to restart the GUI.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
6
2nd Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
7
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.70
Seeing Variability: 
0.4
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: 
0.25
Time lost weather: 
4.75
Time lost other: 
0.0
Description: 
CIDER
Primary Investigator: 
S. Malhotra
Email: 
sangeeta.malhotra@nasa.gov
Institution: 
NASA Goddard Space Flight Center
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-09-19 5.0 0.0 0.25 4.75 0.0 10