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ENR CTIO Blanco 4-m 2023-09-29

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Date: 
Friday, September 29, 2023
Telescope: 
CTIO Blanco 4-m
Submitter: 
Sean Points
Submitter Email: 
sean.points@noirlab.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Marco and Rolando (La Serena)
Problems: 

We saw a strange striation pattern in some images it looked like the old syncing problem, but really was a problem with the controllers.   We resolved the problem by cycling the power of the Monsoon controllers.

The controller problem returned starting at image obj_0478.  WE moved the telescope to zenith and I went to the Cass cage to power cycle the Monsoon electronics.

Comments: 

Had steady focus for he first few hours of the night and the delivered image quality was 0.8¨ (2 pix). Used that time to calculate the focus offsets among the different filters.  Then performed tests to characterize the narrow band filters (164, 2124, and 2168).

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
newfirm_default
Target of Oportunity: 
No
Time Observed: 
8.5
Time Engineering: 
0.0
Time lost technical: 
1.5
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Eng and SV
Primary Investigator: 
Points
Email: 
sean.points@noirlab.edu
Institution: 
CTIO
Instrument: 
CTIO 4m Newfirm
Organization: 
NOAO
Total Program Time: 
10
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2023-09-29 8.5 0.0 1.5 0.0 0.0 10