You are here

CTIO Home

ENR CTIO Blanco 4-m 2015-11-21

Primary tabs

Date: 
Saturday, November 21, 2015
Telescope: 
CTIO Blanco 4-m
Submitter: 
Jelena Aleksic
Submitter Email: 
jelena@ifae.es
Observer Support: 
Alberto Alvarez
Night Assistant: 
None
Problems: 

None.

Comments: 

Very poor seeing for the first 40 mins of observations (~1.75), then very stable (~0.8-0.9) for the better part of the night, to increase again around 4am local time (to ~1.3)

Mild earthquakes: at 7:12 pm (60 km west of Ovalle, 4.1 on Richter scale) and at 8:05 pm local time (57 km west of Ovalle, 5.5 on Richter scale) 

Rasicam: unavailabe at the beginning of the night, came online at 9:55pm local time. It's images have been somewhat odd (color scale is not what we are used to); we have contacted Kevin with the rasicam snapshot

Eric has optimized the nightsum script, reducing its run time (we'll inform tomorrow on it's exact duration)

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky : 
2
2nd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
0.85
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
2
3rd Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
0.90
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
2
4th Quarter
Clouds: 
Thin Clouds
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
2
Program: 
Proposal: 
2012B-0001
Target of Oportunity: 
No
Time Observed: 
8.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Primary Investigator: 
Frieman
Email: 
frieman@fnal.gov
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Total Program Time: 
8
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2015-11-21 8.0 0.0 0.0 0.0 0.0 8