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ENR CTIO Blanco 4-m 2025-04-01

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Date: 
Tuesday, April 1, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Shuairu Zhu
Submitter Email: 
shuairuz@shao.ac.cn
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Cristobal Moya, Guillermo Damke.
Problems: 

(Second Half- Chin Yi Tan) There seems to be some error with the given targets scripts, many of targets were on parts of the sky that is unavailable. Thus, the telescope may have observed targets at unfavorable postions on the sky and  telescope also sat idle for ~30 mins.Eventually found new backup targets to observe

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.93
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
0.93
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
2023B-502332
Target of Oportunity: 
No
Time Observed: 
5.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
CIDER
Primary Investigator: 
Sangeeta Malhotra
Email: 
sangeeta.malhotra@nasa.gov
Institution: 
NASA Goddard Space Flight Center
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
5.25
Proposal: 
2025A-603790
Target of Oportunity: 
No
Time Observed: 
3.5
Time Engineering: 
0.0
Time lost technical: 
0.5
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Followup Dwarfs
Primary Investigator: 
Chin Yi Tan
Email: 
chinyi@uchicago.edu
Institution: 
The University of Chicago
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-04-01 8.75 0.0 0.5 0.0 0.0 9.25