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CTIO Home > ENR CTIO 1.5-m 2021-08-20

ENR CTIO 1.5-m 2021-08-20

Date: 
Friday, August 20, 2021
Telescope: 
CTIO 1.5-m
Submitter: 
Rodrigo Hinojosa
Submitter Email: 
rodrigo.hinojosa@noirlab.edu
Observer Support: 
None
Night Assistant: 
Rodrigo Hinojosa
Problems: 

At the beginning of the night I noted some problems with the guider:

1) The orientation in N-S and E-W are rotated.

2) The position of the fiber changed in the guider: (291, 248) to (327, 274) 

Probably due to these problems appeared another more important problem:

3) The corrections of the guider were wrong, so it was not possible at first instance to guide the targets.

Humberto Orrego, David Rojas and I inspected the situation, after checking some possibilities we found that changing the symbol (positive to negative) in the GUI: Mode - Intensity Centrod - gain [ms/pixel], it is possible to guide the star with the guider. Using this solution it was possible to continue with the observations, but the orientation N-S and E-W (1) and the position of the fiber (2) in the guider are still an issue. We do not know yet the origin of these problems, for the moment we are observing.

Comments: 

Targets not observed: TIC273218137, G2K000398, HIP18606, T0407966340 and T0117938087.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
3
2nd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
1
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
1
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
1
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Program: 
Target of Oportunity: 
No
Time Observed: 
10.0
Time Engineering: 
0.0
Time lost technical: 
1.5
Time lost weather: 
0.0
Time lost other: 
0.0
Primary Investigator: 
Todd Henry
Email: 
thenry@astro.gsu.edu [1]
Institution: 
SMARTS
Instrument: 
CTIO 1.5m Echelle
Organization: 
SMARTS
Total Program Time: 
11.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2021-08-20 10.0 0.0 1.5 0.0 0.0 11.5
Source URL (modified on 08/21/2021 - 07:36): http://www.ctio.noao.edu/noao/content/ENR-CTIO-15-m-2021-08-20

Links
[1] mailto:thenry@astro.gsu.edu
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39607/delete?destination=print/node/18063
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/39607/edit?destination=print/node/18063
[4] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/18063?destination=print/node/18063