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ENR CTIO Blanco 4-m 2025-07-06

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Date: 
Sunday, July 6, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Ali Crisp
Submitter Email: 
crisp.92@osu.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Guillermo Damke, Armin Rest, Farzaneh Zohrabi
Problems: 

TCS network issue at the beginning of the night.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
2
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
2
3rd Quarter
Clouds: 
Thin Clouds
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
1
4th Quarter
Clouds: 
Thin Clouds
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2025A-316276
Target of Oportunity: 
No
Time Observed: 
5.0
Time Engineering: 
0.0
Time lost technical: 
0.5
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Dipole Oriented SN Cosmology
Primary Investigator: 
Clocchiatti
Email: 
aclochia@astro.puc
Institution: 
Pontificia Universidad Catolica de Chile
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
5.5
Proposal: 
2025A-388357
Target of Oportunity: 
No
Time Observed: 
0.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Chasing Extremely Young Transients
Primary Investigator: 
Narayan, Rest
Email: 
arest@stsci.edu
Institution: 
Space Telescope Science Institute
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
0
Proposal: 
2025A-110944
Target of Oportunity: 
No
Time Observed: 
1.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Primary Investigator: 
Ian Dell'Antonio
Email: 
ian_dellantonio@brown.edu
Institution: 
Brown University
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
2025-07-06 6.0 0.0 0.5 0.0 0.0 6.5