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ENR CTIO Blanco 4-m 2023-09-22

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Date: 
Friday, September 22, 2023
Telescope: 
CTIO Blanco 4-m
Submitter: 
Guy Stringfellow
Submitter Email: 
Guy.Stringfellow@colorado.edu
Observer Support: 
Kathy Vivas
Night Assistant: 
Hernan Tirado
Also Present: 
Roberto Aviles
Problems: 

 At around 7:25 UT we started to get a series (5 in total) of dome shutter obstruction warnings that extended until ~9:08 UT. No indication that such an obstruction actually occurred. Quick check of the images showed that the data were fine.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Cirrus
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
6
2nd Quarter
Clouds: 
Partially cloudy
Wind: 
Medium
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
6
3rd Quarter
Clouds: 
Partially cloudy
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
6
4th Quarter
Clouds: 
Partially cloudy
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
3
Program: 
Proposal: 
2019A-0305
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
Description: 
DECam Local Volume Exploration Survey
Primary Investigator: 
Alex Drlica-Wagner
Email: 
kadrlica@fnal.gov
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
1
Proposal: 
2022B-715089
Target of Oportunity: 
No
Time Observed: 
1.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
2.5
Time lost other: 
0.0
Description: 
Discovering optical counterparts to Gravitational Wave Binary Black Hole Mergers
Primary Investigator: 
Antonella Palmese
Email: 
apalmese@andrew.cmu.edu
Institution: 
Carnegie-Mellon University
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4
Proposal: 
2023B-725434
Target of Oportunity: 
No
Time Observed: 
5.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Wide-field observation of Abell 2744: galaxy pre-processing in a dynamically young cluster of galaxies
Primary Investigator: 
Ricardo Demarco
Email: 
rdemarco@astro-udec.cl
Institution: 
Universidad de Concepcion
Instrument: 
CTIO 4m DECam
Organization: 
Chile
Total Program Time: 
5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2023-09-22 7.5 0.0 0.0 2.5 0.0 10