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CTIO Home > ENR CTIO Blanco 4-m 2022-01-17

ENR CTIO Blanco 4-m 2022-01-17

Date: 
Monday, January 17, 2022
Telescope: 
CTIO Blanco 4-m
Submitter: 
Melissa Lynn Graham
Submitter Email: 
melissalynngraham@gmail.com
Observer Support: 
Alberto Alvarez
Night Assistant: 
None
Also Present: 
Hernan Tirado
Problems: 

At about 01:10 a script exceed a pointing limit in the west, but the TCS did not fail safe by just skipping the exposures in the queue. Instead, it seemed to re-insert the last successful exposure, repeat it, and then try the out-of-bounds exposure again. This made it hard to realize at first that this was a pointing failure (we weren't out of bounds by much). Then the entire SISPI crashed and had to be rebooted (I think - Alberto did this part) and after ~20 min we were back up and running. 

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Partially cloudy
Seeing Value: 
2.00
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky : 
4
2nd Quarter
Clouds: 
Thin Clouds
Seeing Value: 
1.50
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
1
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: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
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Program: 
Proposal: 
2021B-0038
Target of Oportunity: 
No
Time Observed: 
7.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECam Alliance for Transients
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
7.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2022-01-17 7.25 0.0 0.0 0.0 0.0 7.25
Source URL (modified on 01/18/2022 - 06:06): http://www.ctio.noao.edu/noao/content/ENR-CTIO-Blanco-4-m-2022-01-17

Links
[1] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/40616/delete?destination=print/node/18551
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/40616/edit?destination=print/node/18551
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/18551?destination=print/node/18551