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ENR CTIO Blanco 4-m 2021-02-14

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Date: 
Sunday, February 14, 2021
Telescope: 
CTIO Blanco 4-m
Submitter: 
Yujin Yang
Submitter Email: 
yyang@kasi.re.kr
Observer Support: 
Alfredo Zenteno
Night Assistant: 
Alberto Alvarez
Problems: 

We had some instrument issue due to electrical failure (we lost ~30min) between 22:23 - 22:53. 

Comments: 

Seeing was highly variable between 1.0 - 1.85arcsec measured from the science image (DIMM = 0.9 2.5arsec). In the time report below, we reported that 1.5h is lost due to weather corresponding to the period of seeing > 1.6arcsec. 

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.43
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.19
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.31
Seeing Variability: 
1.0
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.49
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2020B-0201
Target of Oportunity: 
No
Time Observed: 
6.5
Time Engineering: 
0.0
Time lost technical: 
0.5
Time lost weather: 
1.5
Time lost other: 
0.0
Primary Investigator: 
Soo Lee
Email: 
soolee@purdue.edu
Institution: 
Purdue University
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
8.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2021-02-14 6.5 0.0 0.5 1.5 0.0 8.5