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ENR CTIO Blanco 4-m 2023-09-26

Date: 
Tuesday, September 26, 2023
Telescope: 
CTIO Blanco 4-m
Submitter: 
Tomas Cabrera
Submitter Email: 
tcabrera@andrew.cmu.edu
Observer Support: 
Roberto Aviles
Night Assistant: 
Jackie Seron
Problems: 

A few errors with the telescope/system occurred in the second half of the night.  SISPI broke twice, and the hexapod once; these errors were resolved quickly.  Near the end of the night we lost mount control and were unable to recover before morning twilight.

Additionally, about halfway through the night the qcinv psf for the images spiked to 3+ (including one image with a psf value greater than 4), before slowly falling back down towards 1.0 over the remainder of the night.  This trend is also visible in the SISPI seeing plot for the night.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.30
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
2.00
Seeing Variability: 
1.0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.40
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
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Program: 
Proposal: 
2022A-499674
Target of Oportunity: 
No
Time Observed: 
9.0
Time Engineering: 
0.0
Time lost technical: 
1.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECam Imaging of AGN Reverberation Mapping Fields in SDSS-V
Primary Investigator: 
Yue Shen
Email: 
shenyue@illinois.edu [1]
Institution: 
University of Illinois at Urbana-Champaign
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2023-09-26 9.0 0.0 1.0 0.0 0.0 10
Source URL (modified on 09/27/2023 - 06:29): http://www.ctio.noao.edu/noao/content/ENR-CTIO-Blanco-4-m-2023-09-26

Links
[1] mailto:shenyue@illinois.edu
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/42924/delete?destination=print/node/20913
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/42924/edit?destination=print/node/20913
[4] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/20913?destination=print/node/20913