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ENR CTIO Blanco 4-m 2015-04-09

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Date: 
Thursday, April 9, 2015
Telescope: 
CTIO Blanco 4-m
Submitter: 
Arjun Dey
Submitter Email: 
dey@noao.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Alberto Alvarez
Also Present: 
Brian Nord
Problems: 

Telescope TCS failed twice in the early part of the night (UT 01:59 and 02:31) causing guiding and the exposure to be lost. On the second failure the TCS was booted from the kernel and SISPI was Configured. After correcting for a large pointing offset, the system worked without any other problems for the rest of the night. The failures cost us ~ 20 min. 

The espresso machine does not work. Its presence just reminds us that we cannot have espresso. 

Comments: 

Seeing was variable (night was warm, and the mirror was always much cooler than ambient). 

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.10
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
1.10
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2014B-0404
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: 
The Dark Energy Camera Legacy Survey (DECaLS)
Primary Investigator: 
Schlegel and Dey
Email: 
deysch@noao.edu
Institution: 
NOAO
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
2015-04-09 10.25 0.0 0.25 0.0 0.0 10.5