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ENR CTIO Blanco 4-m 2025-08-28

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Date: 
Thursday, August 28, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Xander Hall (1st half) / Nitya Pandey (2nd half) / Tomas Cabrera (ToO)
Submitter Email: 
xjh@andrew.cmu.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Rodrigo Hinojosa and Guillermo Damke
Problems: 

TCS Technical Issue at 4:08 UTC lasted for 8 minutes.

The database entry for Pandey program had a special character in the program field that made SISPI unhappy and the images were not delivered. Guillermo updated the database and everything worked well after a SISPI restart. 45 minutes lost in total. 

Comments: 

ToO observed from 5:15 local time until the end of the night.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.80
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.80
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.70
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
2.00
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2025A-587063
Target of Oportunity: 
No
Time Observed: 
5.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
A Survey for potentially hazardous small aphelion NEOs using DECam
Primary Investigator: 
Kleyna-Wainscoat
Email: 
kleyna@hawaii.edu
Institution: 
University of Hawaii
Instrument: 
CTIO 4m DECam
Total Program Time: 
5.25
Proposal: 
2025B-213846
Target of Oportunity: 
No
Time Observed: 
3.75
Time Engineering: 
0.0
Time lost technical: 
0.75
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Deep survey of Neptunes Irregular Moons
Primary Investigator: 
Nitya Pandey
Email: 
npandey@das.uchile.cl
Institution: 
Universidad de Chile
Instrument: 
CTIO 4m DECam
Organization: 
Chile
Total Program Time: 
4.5
Proposal: 
2023B-851374
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: 
GW-MMADS: Gravitational Wave Multi-Messenger Astronomy DECam Survey
Primary Investigator: 
Antonella Palmese
Email: 
apalmese@andrew.cmu.edu
Institution: 
Carnegie Mellon University
Instrument: 
CTIO 4m DECam
Organization: 
N/A
Total Program Time: 
1
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-08-28 10.0 0.0 0.75 0.0 0.0 10.75