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ENR CTIO Blanco 4-m 2019-02-06

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Date: 
Wednesday, February 6, 2019
Telescope: 
CTIO Blanco 4-m
Submitter: 
Mitch McNanna, Satya Gontcho A Gontcho
Submitter Email: 
mcnanna@wisc.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Kathy Vivas, Keith Becthol (remote)
Problems: 

None.

Comments: 

[M McN] Very good seeing and little clouds at the start of the night. Good seeing continued, but it became quite cloudy toward the midpoint.

[SGG] Terrible transparency the first 1h15. Then, seeing and transparency very variable. Overall, a mediocre night because of the cloud coverage.

Conditions: 
General Conditions
Comment: 
First half of night: Wind a steady 5 mph, temperature steady near 18 C. Some high clouds at the start oft the night but not enough to significantly impact observations. Cloud cover increased significantly near the end of the first half-night.
1st Quarter
Clouds: 
Cirrus
Wind: 
Low
Seeing Value: 
1.05
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
1
2nd Quarter
Clouds: 
Partially cloudy
Wind: 
Low
Seeing Value: 
1.08
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
6
3rd Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.8
Seeing Source: 
Other
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.4
Seeing Source: 
Other
Sky: 
0
Program: 
Proposal: 
2018A-0242
Target of Oportunity: 
No
Time Observed: 
4.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
MagLitesS-II
Primary Investigator: 
Keith Bechtol
Email: 
kbechtol@wisc.edu
Institution: 
University of Wisconsin -- Madison
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4.5
Proposal: 
2014B-0404
Target of Oportunity: 
No
Time Observed: 
4.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECaLS
Primary Investigator: 
Schlegel
Email: 
djschlegel@lbl.gov
Institution: 
Lawrence Berkeley National Laboratory
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2019-02-06 9.0 0.0 0.0 0.0 0.0 9