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ENR CTIO Blanco 4-m 2025-05-28

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Date: 
Wednesday, May 28, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Yifei Luo
Submitter Email: 
yifeiluo@lbl.gov
Observer Support: 
Alfredo Zenteno
Night Assistant: 
Alberto Alvarez
Also Present: 
Guillermo Damke, Jaime Forero
Problems: 

We tested the ETC again in the begining of the night. Guider was not working when ETC is on. We then restarted SISPI and only use decbot, without turning on the ETC. Guider then worked stably.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.50
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
2023B-184194
Target of Oportunity: 
No
Time Observed: 
11.0
Time Engineering: 
0.0
Time lost technical: 
1.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
IBIS survey
Primary Investigator: 
Arjun Dey
Email: 
arjun.dey@noirlab.edu
Institution: 
Noirlab
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
2025-05-28 11.0 0.0 1.0 0.0 0.0 12