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ENR CTIO Blanco 4-m 2025-10-24

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Date: 
Friday, October 24, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Himanshu Verma
Submitter Email: 
hverma@lsu.edu
Observer Support: 
Alfredo Zenteno
Night Assistant: 
Claudio Aguilera
Also Present: 
Manuel Hernandez, Ali Crisp, Marz Newman
Problems: 

In the second half of the night, the RA offset was going beyond 10 (more than 18) so we had to stop for a while and correct for the pointing. No significant time was lost.

Comments: 

We were running ahead of time so  XCOS target was included from extra target list.

Conditions: 
General Conditions
Temperature Max: 
11.00
Temperature Min: 
8.00
Humidity Max: 
60
Humidity Min: 
10
Wind Speed Max: 
7.00
Wind Speed Min: 
2.00
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky : 
6
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
3
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky: 
4
4th Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky: 
2
Program: 
Proposal: 
2025B-335691
Target of Oportunity: 
No
Time Observed: 
8.75
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DEFSuS
Primary Investigator: 
Newman
Email: 
mnewm25@lsu.edu
Institution: 
Louisiana State University
Instrument: 
CTIO 4m DECam
Total Program Time: 
8.75
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-10-24 8.75 0.0 0.0 0.0 0.0 8.75