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ENR CTIO Blanco 4-m 2023-12-20

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Date: 
Wednesday, December 20, 2023
Telescope: 
CTIO Blanco 4-m
Submitter: 
James Rhoads
Submitter Email: 
James.E.Rhoads@nasa.gov
Observer Support: 
Guillermo Damke
Night Assistant: 
Claudio Aguilera
Also Present: 
Rodrigo Hinojosa, Manuel Hernanez, Mainak Singha
Problems: 

None.

Comments: 

Moon was about 50 degrees from our primary target field (CDF-South).   Some exposures showed elevated sky.   We suspect scattered moonlight may be causing this for some geometries.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2023B-502332
Target of Oportunity: 
No
Time Observed: 
7.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
CIDER: Charting Ionization in the Epoch of Reionization. Deep survey for Lyman alpha emission at the highest redshift accessible to DECam using NB1008 filter
Primary Investigator: 
Malhotra
Email: 
Sangeeta.Malhotra@nasa.gov
Total Program Time: 
7.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2023-12-20 7.5 0.0 0.0 0.0 0.0 7.5