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ENR CTIO Blanco 4-m 2021-09-04

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Date: 
Saturday, September 4, 2021
Telescope: 
CTIO Blanco 4-m
Submitter: 
Kevin Napier
Submitter Email: 
kjnapier@umich.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Hsing-Wen, Edward Lin, Tim Abbott
Problems: 

Strange problem at ~7:45 UT, exp #1029148 and subsequent. 
Stars became triangles, but 4MAP showed no errors, instead hexapod started timing out. 
Went to zenith, reset TCS, 4MAP.
Took several images, things got normal again. 
Hypothesize problem was with 4MAP, and AOS got confused by the wild images and drove the hexapod to large corrections which took too long to apply, hence the timeouts.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2019A-0337
Target of Oportunity: 
No
Time Observed: 
4.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
The Deep DECam Outer Solar System Survey
Primary Investigator: 
David Trilling
Email: 
David.Trilling@nau.edu
Institution: 
Northern Arizona University
Instrument: 
CTIO 4m DECam
Total Program Time: 
4.5
Proposal: 
2010B-0253
Target of Oportunity: 
No
Time Observed: 
4.25
Time Engineering: 
0.0
Time lost technical: 
0.75
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DWF
Primary Investigator: 
Cooke
Email: 
jeffreycooke@swin.edu.au
Institution: 
Swinburne University of Technology
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2021-09-04 8.75 0.0 0.75 0.0 0.0 9.5