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ENR CTIO Blanco 4-m 2026-01-04

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Date: 
Sunday, January 4, 2026
Telescope: 
CTIO Blanco 4-m
Submitter: 
Keerthi Kunnumkai / Jan Kleyna
Submitter Email: 
kkunnumk@andrew.cmu.edu
Observer Support: 
Claudio Aguilera
Night Assistant: 
None
Problems: 

None.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
0.60
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
0.70
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.75
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
0.85
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2025B-589422
Target of Oportunity: 
No
Time Observed: 
8.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECam shadowing of LSST to discover the youngest transients in the nearby universe
Primary Investigator: 
David Sand
Email: 
dsand@arizona.edu
Institution: 
University of Arizona
Instrument: 
CTIO 4m DECam
Organization: 
Chile
Total Program Time: 
8
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2026-01-04 8.0 0.0 0.0 0.0 0.0 8