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ENR CTIO Blanco 4-m 2020-10-25

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Date: 
Sunday, October 25, 2020
Telescope: 
CTIO Blanco 4-m
Submitter: 
Sidney Mau
Submitter Email: 
smau@stanford.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Clara Martínez-Vázquez
Problems: 

Guider error around 05:30 UTC, due to air compressor not being able to correctly shape the mirror.

Another compressor problem around 07:30 UTC when changing filters from i to g.

Comments: 

None.

Conditions: 
General Conditions
Temperature Max: 
14.30
Temperature Min: 
8.60
Humidity Max: 
59
Humidity Min: 
16
Wind Speed Max: 
20.00
Wind Speed Min: 
6.00
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
0.70
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
2019A-0305
Target of Oportunity: 
No
Time Observed: 
8.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.75
Description: 
DELVE
Primary Investigator: 
Alex Drlica-Wagner
Email: 
kadrlica@fnal.gov
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
8.75
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2020-10-25 8.0 0.0 0.0 0.0 0.75 8.75