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ENR CTIO Blanco 4-m 2018-05-08

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Date: 
Tuesday, May 8, 2018
Telescope: 
CTIO Blanco 4-m
Submitter: 
Scott Sheppard
Submitter Email: 
sheppardss@yahoo.com
Observer Support: 
Tim Abbott
Night Assistant: 
Alberto Alvarez
Problems: 

None.

Comments: 

Lots of cirrus reflecting bright moonlight through much of the night.

Conditions: 
General Conditions
Temperature Max: 
10.00
Temperature Min: 
4.00
Humidity Max: 
70
Humidity Min: 
50
Wind Speed Max: 
30.00
Wind Speed Min: 
10.00
Comment: 
Cirrus covering most of the sky for most of the night. Combined with bright moon made conditions very bright. Seeing >1.3" with excursions to 3+".
1st Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
2.00
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Cirrus
Wind: 
Medium
Seeing Value: 
1.90
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
8
3rd Quarter
Clouds: 
Cirrus
Wind: 
Medium
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
7
4th Quarter
Clouds: 
Cirrus
Wind: 
Medium
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
8
Program: 
Proposal: 
2018A-0393
Target of Oportunity: 
No
Time Observed: 
5.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Extreme Trans-Neptunian Objects
Primary Investigator: 
Scott Sheppard
Email: 
sheppard@dtm.ciw.edu
Institution: 
Carnegie Institution of Washington
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
5.5
Proposal: 
2018A-0251
Target of Oportunity: 
No
Time Observed: 
5.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECam Plane Survey
Primary Investigator: 
Finkbeiner
Email: 
dfinkbeiner@cfa.harvard.edu
Institution: 
Harvard
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
5.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2018-05-08 11.0 0.0 0.0 0.0 0.0 11