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ENR CTIO Blanco 4-m 2016-05-19

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Date: 
Wednesday, May 18, 2016
Telescope: 
CTIO Blanco 4-m
Submitter: 
Tim Abbott
Submitter Email: 
Observer Support: 
Manuel Hernandez
Night Assistant: 
Alberto Alvarez
Also Present: 
Rodrigo Hernandez
Problems: 

It transpires that the dome will not follow the telescope if one tries to point using the single-exposure input with SISPI.  I do not know why this is the case and apologise for waking Omar because I thought something was wrong.  The only way to make this happen is via a script which includes tracking=on for each call.  There is an option in sispi to point with "HA w/trk" but it doesn't work, SISPI complains about bad coordinates.

4MAP died once slewing from one side of the sky to the other.  No biggie.

Comments: 

The weather still sucks, but it's getting better.  Unfortunately this means that instead of sticking your nose out of the door and seeing it's going to suck for the next 3 hours minimum, you have to look outside every half hour just in case.  In between clouds, I was able to test the new 4MAP LUT provided by Aaron with two pointings (all-sky maps were impossible), comparing it to no LUT and the current LUT.  Unless you squint hard they look about the same, which is probably a good thing, but we will need to crunch the data a bit to be sure.

 

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Overcast
Seeing Value: 
0.00
Seeing Variability: 
0
Seeing Source: 
CTIO Seeing monitor
Sky : 
8
2nd Quarter
Clouds: 
Cirrus
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
4
3rd Quarter
Clouds: 
Cirrus
Seeing Value: 
0.00
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
8
4th Quarter
Clouds: 
Cirrus
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
3
Program: 
Proposal: 
2013B-9999
Target of Oportunity: 
No
Time Observed: 
4.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
7.0
Time lost other: 
0.0
Description: 
DECam/Blanco engineering
Primary Investigator: 
Alistair Walker
Institution: 
CTIO
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
11.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2016-05-18 4.5 0.0 0.0 7.0 0.0 11.5