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ENR CTIO Blanco 4-m 2017-04-25

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Date: 
Tuesday, April 25, 2017
Telescope: 
CTIO Blanco 4-m
Submitter: 
Jeff Carlin
Submitter Email: 
jcarlin@lsst.org
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Jeff Carlin (observer)
Problems: 

At ~1:05 AM (4:05 UT), the telescope stopped while slewing to a new field. Alberto went up to the dome to fix it.

Comments: 

Alberto explained that there is a cable (the "HA cable wrap") that gets caught beneath the telescope (on a plate that is coated with Teflon, but is partly worn out). He went upstairs and manually moved the cable, and we were able to restart. This is a known issue (with an active JIRA ticket - Blanco-846).

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2017A-0060
Target of Oportunity: 
No
Time Observed: 
10.25
Time Engineering: 
0.0
Time lost technical: 
0.25
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Dwarfs around Dwarfs: Satellite galaxies and stellar halos around dwarf galaxies
Primary Investigator: 
Denija Crnojevic
Email: 
denija.crnojevic@ttu.edu
Institution: 
Texas Tech University
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2017-04-25 10.25 0.0 0.25 0.0 0.0 10.5