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ENR CTIO Blanco 4-m 2023-10-04

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Date: 
Wednesday, October 4, 2023
Telescope: 
CTIO Blanco 4-m
Submitter: 
Abbe Whitford
Submitter Email: 
a.whitford@uqconnect.edu.au
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Lluis Galbany, Arjun Dey, Alfredo Zenteno
Problems: 

At the beginning of the night the TCS was not receiving commands from the osbot, but fixed quickly. At 6:01 utc there was alarms stating 'Interlock DECAM is broken' and 'Interlock SISPI (HEXAPOD) is broken' but was fixed by the operators quickly. No other issues occured. Weather was good through the whole night with clear skies, low humidity and wind, and good transparency. Only the seeing was variable.

Comments: 

Issues have been outlined above.

Conditions: 
General Conditions
Temperature Max: 
10.00
Temperature Min: 
6.00
Humidity Max: 
47
Humidity Min: 
32
Wind Speed Max: 
8.95
Wind Speed Min: 
18.00
Comment: 
Weather was good for observing minus the seeing which varied between 1-2.5 arcseconds.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.90
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
2.00
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2014B-0404
Target of Oportunity: 
No
Time Observed: 
9.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Decal2/DESI2 observing
Primary Investigator: 
Arjun Dey, David Schlegel
Email: 
arjun.dey@noirlab.edu
Institution: 
Noirlab
Instrument: 
CTIO 4m DECam
Organization: 
Chile
Total Program Time: 
9.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2023-10-04 9.25 0.0 0.0 0.0 0.0 9.25