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ENR CTIO Blanco 4-m 2024-04-04

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Date: 
Thursday, April 4, 2024
Telescope: 
CTIO Blanco 4-m
Submitter: 
Yifei Luo (first half) and Allen Seifert (second half)
Submitter Email: 
yifeiluo@ucsc.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Yifei Luo, Robel Geda, Allen Seifert
Problems: 

[23:47] Start check_sky exposures. There was an engineering failure at the beginning of the night, solved within 10min.

[04:30] There was another engineering failure, solved within 10min. However we lost one exposure 12867663.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.40
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
0.92
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
1.08
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.05
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
2020B-0288
Target of Oportunity: 
No
Time Observed: 
9.5
Time Engineering: 
0.5
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Merian Survey
Primary Investigator: 
Alexie Leauthaud
Email: 
alexie@ucsc.edu
Institution: 
UCSC
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2024-04-04 9.5 0.5 0.0 0.0 0.0 10