Published on CTIO (http://www.ctio.noao.edu/noao)

CTIO Home > ENR CTIO Blanco 4-m 2017-08-19

ENR CTIO Blanco 4-m 2017-08-19

Date: 
Saturday, August 19, 2017
Telescope: 
CTIO Blanco 4-m
Submitter: 
Jen Marshall
Submitter Email: 
marshall@tamu.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Claudio Aguilera
Also Present: 
Erika Cook, Ting Li (remote), Yuanyuan Zhang (remote)
Problems: 

First half:

Occlusion Danger Zone warning 6 times.

Exp669424 Guider Alert: Continuous null centroids limit exceeded.

It seems as if in many cases the exposure starts before the dome even begins to move--perhaps the recent modifications to the dome control software could be further improved.  This happened mainly in the first 2.3 of the night; the end of the night was okay.

Comments: 

None.

http://des-ops.fnal.gov:8080/nightsum/nightsum-2017-08-19/nightsum.html

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.30
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.50
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.50
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
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Program: 
Proposal: 
2014B-0404
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: 
DECalS
Primary Investigator: 
David Schlegel
Email: 
DJSchlegel@lbl.gov [1]
Total Program Time: 
5.5
Proposal: 
2012B-0001
Target of Oportunity: 
yes
Time Observed: 
5.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Dark Energy SUrvey
Primary Investigator: 
Josh Frieman
Email: 
frieman@fnal.gov [4]
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
5.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2017-08-19 11.0 0.0 0.0 0.0 0.0 11
Source URL (modified on 08/20/2017 - 07:10): http://www.ctio.noao.edu/noao/content/ENR-CTIO-Blanco-4-m-2017-08-19

Links
[1] mailto:DJSchlegel@lbl.gov
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/4140/delete?destination=print/node/12369
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/4140/edit?destination=print/node/12369
[4] mailto:frieman@fnal.gov
[5] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/4141/delete?destination=print/node/12369
[6] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/4141/edit?destination=print/node/12369
[7] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/12369?destination=print/node/12369