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CTIO Home > ENR CTIO Blanco 4-m 2021-06-02

ENR CTIO Blanco 4-m 2021-06-02

Date: 
Wednesday, June 2, 2021
Telescope: 
CTIO Blanco 4-m
Submitter: 
Clara Martinez-Vazquez
Submitter Email: 
clara.martinez@noirlab.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Márcio Catelan, Camila Aravena, Karina Baeza, Athanasios Papageorgiou
Problems: 

SISPI GUIs were frozen in my browser for a few minutes. We lost ~4 minutes because of this at 01:20 UT.

Around ~08:35 UT I realized that the backplane #4 (central CCDs S7 to S4 and N7 to N4) was having issues and was not displaying any stars. I checked that this situation started in the image 1005276 at 08:22 UT. We did not receive any alert at all. Alberto and Hernán restarted SISPI twice but the issue was not fixed. They contacted Javier who reset the crates. Hernán and Alberto restarted SISPI again but we were experiencing the same issue with the central backplane. They moved the telescope to the Zenith to see if there was an interference. They took a few exposures (of 3s and 30s) but the CCDs of the backplane #4 were not responding. We decided to close the telescope at 10:30 UT since we were not able to resolve the issue.

Comments: 

None.

Conditions: 
General Conditions
Temperature Max: 
17.00
Temperature Min: 
16.00
Humidity Max: 
40
Humidity Min: 
25
Wind Speed Max: 
10.00
Wind Speed Min: 
2.00
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
3
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
2
3rd Quarter
Clouds: 
Thin Clouds
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
2
4th Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
1
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Program: 
Proposal: 
2021A-0921
Target of Oportunity: 
No
Time Observed: 
10.0
Time Engineering: 
0.0
Time lost technical: 
2.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
A DECam Survey of Rapidly Variable Stars
Primary Investigator: 
Márcio Catelan
Email: 
mcatelan@astro.puc.cl [1]
Institution: 
CTIO
Instrument: 
CTIO 4m DECam
Organization: 
Chile
Total Program Time: 
12
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2021-06-02 10.0 0.0 2.0 0.0 0.0 12
Source URL (modified on 06/03/2021 - 06:48): http://www.ctio.noao.edu/noao/content/ENR-CTIO-Blanco-4-m-2021-06-02

Links
[1] mailto:mcatelan@astro.puc.cl
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39245/delete?destination=print/node/17791
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39245/edit?destination=print/node/17791
[4] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/17791?destination=print/node/17791