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ENR CTIO Blanco 4-m 2025-12-16

Date: 
Tuesday, December 16, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
S. Panda
Submitter Email: 
swayamtrupta.panda@noirlab.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Roberto Aviles
Also Present: 
K. Boutsia, A. Dey
Problems: 

Around 08:05 UT, when we  we had a "Interlock DECAM (LATCH) is now broken" error. The OA followed the procedure and recovered the system in less than 10min. We resumed the observation at 08:14 UT.

Comments: 

We observed the entire night and observed the entire queue for IBIS.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.10
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
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
0
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Program: 
Proposal: 
2023B-184194
Target of Oportunity: 
No
Time Observed: 
7.75
Time Engineering: 
0.0
Time lost technical: 
0.25
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
IBIS
Primary Investigator: 
Dey-Schlegel
Email: 
arjun.dey@noirlab.edu [1]
Institution: 
NOIRLab
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
8
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-12-16 7.75 0.0 0.25 0.0 0.0 8
Source URL (modified on 12/17/2025 - 05:45): http://www.ctio.noao.edu/noao/node/23486

Links
[1] mailto:arjun.dey@noirlab.edu
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44885/delete?destination=print/content/enr-ctio-blanco-4-m-2025-12-16
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44885/edit?destination=print/content/enr-ctio-blanco-4-m-2025-12-16
[4] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/23486?destination=print/content/enr-ctio-blanco-4-m-2025-12-16