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ENR CTIO Blanco 4-m 2013-06-23

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Date: 
Sunday, June 23, 2013
Telescope: 
CTIO Blanco 4-m
Submitter: 
Andrea Kunder & Chris Smith
Submitter Email: 
Observer Support: 
Mauricio Rojas
Night Assistant: 
Alberto Alvarez
Problems: 

We had some problems understanding the instructions to turn of the DX/DY/tip/tilt as posted here:

https://cdcvs.fnal.gov/redmine/projects/decamops/wiki/Using_AOS_%28Adapt...

which says "In this [Hexapod trim] window enter a 0 (zero, not the letter O) in the fields for DX, DY, tip and tilt. The fields are not labeled (we'll fix that eventually). From left to right they are DX, DY, DZ, tip, tilt. DZ is the focus. Leave this value alone.
Click the Submit button"

If we leave this value alone, then the value for DZ is zero (zero is the default value in the DZ box), and the focus goes off by ~1000 microns (!!!). 

Should the instructions have said something like: "Note the Z value of the trim. This value has to be entered in the DZ box."?

Once the focus is off by ~1000 microns, the donut system was not able to recover without human intervention to get the focus value closer to optimal focus.

I could not see a big different tonight between the DX/DY/tip/tilt on and the DX/DY/tip/tilt off in the ellipticities of the stars--the ellipticities in my crowded fields seemed large to me.

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observer1 froze completely during the early morn.  Probably some bad interaction between SISPI memory leaks and Skype (we were running a video Skype connection continuously until it froze).  

Comments: 

We observed remotely!

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2013A-0719
Target of Oportunity: 
No
Time Observed: 
4.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Bulge
Primary Investigator: 
Saha
Institution: 
NOAO
Instrument: 
CTIO 4m DECam
Organization: 
DD
Total Program Time: 
4.25
Proposal: 
2013A-0716
Target of Oportunity: 
No
Time Observed: 
7.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
SUDDS
Primary Investigator: 
Sullivan
Institution: 
CTIO
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
7.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2013-06-23 11.5 0.0 0.0 0.0 0.0 11.5