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CTIO Home > ENR CTIO Blanco 4-m 2016-08-02

ENR CTIO Blanco 4-m 2016-08-02

Date: 
Tuesday, August 2, 2016
Telescope: 
CTIO Blanco 4-m
Submitter: 
Tim Abbott
Submitter Email: 
tabbott@ctio.noao.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Tyler Pritchard
Problems: 

Alistair, first half of night:

Tech downtime: 0.3 hours

Reason: At the poimting cehck, noticed HA and ZD not appearing in the headers, also not updating in the telemetry viewer. OK on the TCS side. As a consequence Kentools “center” would not work. Restarted SISPI but that did not fix it. Then, apparently without doing anything, HA and ZD started appearing in the headers and telemetry display. The images affected were 558305-558403.

 

Tim, second half of night:

The SISPI telemetry viewer has got systematically slower through the night.

Alberto noticed the LN2 pressure rising.  Investigation showed that this started at about 10pm.  Further investigation shows decaying vacuum in the 1r line.  Time to pump?

 

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.50
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
1.50
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.40
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
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Program: 
Proposal: 
2014B-0404
Target of Oportunity: 
No
Time Observed: 
5.25
Time Engineering: 
0.0
Time lost technical: 
0.25
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECaLS
Primary Investigator: 
Arjun Dey
Email: 
dey@noao.edu [1]
Institution: 
NOAO
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
5.5
Proposal: 
2016B-0244
Target of Oportunity: 
No
Time Observed: 
5.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Deeper, Wider, Faster
Primary Investigator: 
Andreoni
Email: 
iandreoni@astro.swin.edu.au [4]
Institution: 
Swinburne University of Technology
Instrument: 
CTIO 4m DECam
Total Program Time: 
5.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2016-08-02 10.75 0.0 0.25 0.0 0.0 11
Source URL (modified on 08/03/2016 - 06:28): http://www.ctio.noao.edu/noao/content/enr-ctio-blanco-4-m-2016-08-02

Links
[1] mailto:dey@noao.edu
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/3289/delete?destination=print/content/enr-ctio-blanco-4-m-2016-08-02
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/3289/edit?destination=print/content/enr-ctio-blanco-4-m-2016-08-02
[4] mailto:iandreoni@astro.swin.edu.au
[5] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/3290/delete?destination=print/content/enr-ctio-blanco-4-m-2016-08-02
[6] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/3290/edit?destination=print/content/enr-ctio-blanco-4-m-2016-08-02
[7] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/10311?destination=print/content/enr-ctio-blanco-4-m-2016-08-02