You are here

CTIO Home

ENR CTIO Blanco 4-m 2015-04-11

Primary tabs

Date: 
Saturday, April 11, 2015
Telescope: 
CTIO Blanco 4-m
Submitter: 
Bob Blum
Submitter Email: 
rblum@noao.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Alberto Alvarez
Also Present: 
D. Walker/E. Bustos phone
Problems: 

DIMM offline at 00:53 UT (10 p local). Back at 03:10 UT.

We had one shutter failure at 01:14 UT, exp 431952 was not taken.

Comments: 

Great night. Thin cirrus then cirrus after midnight. Thick by end. 

Excellent seeing/DIQ all night.

Thanks Manuel and Alberto, great support!

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Thin Clouds
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Partially cloudy
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2014B-0404
Target of Oportunity: 
No
Time Observed: 
9.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
1.0
Time lost other: 
0.0
Description: 
DECaLS
Primary Investigator: 
David Schlegel, Arjun Dey
Email: 
deysch@noao.edu
Institution: 
Lawrence Berkeley National Laboratory
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2015-04-11 9.5 0.0 0.0 1.0 0.0 10.5