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ENR CTIO Blanco 4-m 2014-09-14

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Date: 
Sunday, September 14, 2014
Telescope: 
CTIO Blanco 4-m
Submitter: 
Basilio Santiago
Submitter Email: 
basilio.santiago@ufrgs.br
Observer Support: 
David James
Night Assistant: 
Alberto Alvarez
Also Present: 
Elmer Luque, Andres Plazas
Problems: 

Shutter error occurred at 23:58. Reset by TelOps.

Comments: 

Humidity was high and seeing was above 2"  in the beginning. Both improved along the first half.  Humidity waved back and forth during 3rd quarter and decrased in the end. Seeing slowly decreased with time, reaching 1.5" by end of 1st quarter and 1.0" at the end of the night. Wind increased in the 2nd half (dome louver windows were closed).

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
2.00
Seeing Variability: 
0.6
Seeing Source: 
Other
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.2
Seeing Source: 
Other
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.50
Seeing Variability: 
0.2
Seeing Source: 
Other
Sky: 
0
4th Quarter
Clouds: 
Cirrus
Wind: 
Medium
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
Other
Sky: 
2
Program: 
Proposal: 
2012B-0001
Target of Oportunity: 
No
Time Observed: 
10.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Dark Energy Survey
Primary Investigator: 
Joshua Frieman
Email: 
frieman@fnal.gov
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Total Program Time: 
10.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2014-09-14 10.25 0.0 0.0 0.0 0.0 10.25