You are here

CTIO Home

ENR CTIO Blanco 4-m 2025-08-03

Primary tabs

Date: 
Sunday, August 3, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Keerthi Kunnumkai
Submitter Email: 
kkunnumk@andrew.cmu.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Rodrigo Hinojosa
Problems: 

None.

Comments: 

Very thick cirrus all night.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Partially cloudy
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
7
2nd Quarter
Clouds: 
Partially cloudy
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
4
3rd Quarter
Clouds: 
Partially cloudy
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
6
4th Quarter
Clouds: 
Partially cloudy
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
5
Program: 
Proposal: 
2025B-878440
Target of Oportunity: 
No
Time Observed: 
3.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Building a Low-z Sample of Type Ia SNe
Primary Investigator: 
Dillon Brout
Email: 
dbrout@bu.edu
Institution: 
Boston University
Instrument: 
CTIO 4m DECam
Organization: 
DD
Total Program Time: 
3.5
Proposal: 
2025A-227091
Target of Oportunity: 
No
Time Observed: 
2.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
des GW
Primary Investigator: 
Soares-Santos
Email: 
mssantos@umich.edu
Institution: 
University of Zurich
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
2
Proposal: 
2025A-110944
Target of Oportunity: 
No
Time Observed: 
4.25
Time Engineering: 
0.0
Time lost technical: 
0.0
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 Dellantonio
Email: 
ian_dellantonio@brown.edu
Institution: 
Brown University
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4.25
Proposal: 
2023B-851374
Target of Oportunity: 
No
Time Observed: 
0.75
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
GW-MMADS
Primary Investigator: 
Andreoni and Palmese
Email: 
apalmese@andrew.cmu.edu
Institution: 
Carnegie Mellon University
Instrument: 
CTIO 4m DECam
Organization: 
Chile
Total Program Time: 
0.75
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-08-03 10.5 0.0 0.0 0.0 0.0 10.5