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ENR CTIO Blanco 4-m 2019-04-25

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Date: 
Thursday, April 25, 2019
Telescope: 
CTIO Blanco 4-m
Submitter: 
Eddie Schlafly
Submitter Email: 
eschlafly@gmail.com
Observer Support: 
Clara Martinez-Vazquez
Night Assistant: 
Claudio Aguilera
Also Present: 
Hernan Tirado
Problems: 

None.

Comments: 

Slightly cloudy skies for the first half night, which cleared up for the second half night.  Seeing was initially 1.2", but improved to 0.9" before returning to 1.2" to end the night.  Telescope worked great; no problems.

Conditions: 
General Conditions
Temperature Max: 
10.00
Temperature Min: 
8.00
Humidity Max: 
78
Humidity Min: 
55
Wind Speed Max: 
20.00
Wind Speed Min: 
5.00
Comment: 
None.
1st Quarter
Clouds: 
Cirrus
Wind: 
Low
Seeing Value: 
1.30
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
2
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
2
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2019A-0265
Target of Oportunity: 
No
Time Observed: 
11.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Mapping Dust in 3D with DECam
Primary Investigator: 
Finkbeiner
Email: 
dfinkbeiner@cfa.harvard.edu
Institution: 
Harvard
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
11.25
Proposal: 
2019A-0240
Target of Oportunity: 
yes
Time Observed: 
0.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Followup of IceCube Neutrinos
Primary Investigator: 
Bechtol
Email: 
bechtol@wisc.edu
Institution: 
University of Wisconsin -- Madison
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
0.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2019-04-25 11.5 0.0 0.0 0.0 0.0 11.5