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ENR CTIO Blanco 4-m 2025-04-05

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Date: 
Saturday, April 5, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Ian Dell'Antonio
Submitter Email: 
ian_dell'antonio@brown.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Alfredo Zenteno, Roberto Aviles, Shenming Fu, Soren Helhoski, Jessica Nelson
Problems: 

4MAPS failed at 5am; lost about 15 minutes of bad seeing data.

Comments: 

pretty bad seeing all night.

 

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.50
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
2.00
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.80
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2025A-110944
Target of Oportunity: 
No
Time Observed: 
9.25
Time Engineering: 
0.0
Time lost technical: 
0.25
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Creating a Uniform Sample of Clusters with X-ray and SZ Measurements in the Local Universe
Primary Investigator: 
Ian Dell'Antonio
Email: 
ian_dell'antonio@brown.edu
Institution: 
Brown University
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
9.5
Proposal: 
2025A-227091
Target of Oportunity: 
yes
Time Observed: 
1.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
ToO followup of LVK trigger S250328ae
Primary Investigator: 
Soares-Santos
Email: 
sean.macbride@physik.uzh.ch
Institution: 
University of Zurich
Instrument: 
CTIO 4m DECam
Total Program Time: 
1
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-04-05 10.25 0.0 0.25 0.0 0.0 10.5