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ENR CTIO Blanco 4-m 2014-03-30

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Date: 
Sunday, March 30, 2014
Telescope: 
CTIO Blanco 4-m
Submitter: 
Aren Heinze
Submitter Email: 
Observer Support: 
None
Night Assistant: 
Alberto Alvarez
Problems: 

None.

Comments: 

A good night, with no problems.  One slightly strange issue that I noticed is that when you define hexagonal dithers with the  DECam scripting tool using a positive declination offset, it actually offsets toward negative declinations.  Thus there appears to be a sign error in the scripting tool's hexagonal dither function.  I encountered this while observing at -4 degrees declination.  I don't know whether it also applies north of the equator.  It caused some of my dithers to be placed differently from where I expected and caused imperfections in my overall dither pattern, but this will not have any meaningful effect on the data.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
2.00
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: 
1.40
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.50
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
1
Program: 
Proposal: 
2014A-0496
Target of Oportunity: 
No
Time Observed: 
9.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
The Deepest Asteroid Survey Ever: Collisional Processes and the Source of Near Earth Asteroids
Primary Investigator: 
Aren Heinze
Institution: 
Stony Brook University
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
9.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2014-03-30 9.5 0.0 0.0 0.0 0.0 9.5