ENR CTIO Blanco 4-m 2015-11-21

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 :

2nd Quarter

Clouds:

Thin Clouds

Wind:

Low

Seeing Value:

0.85

Seeing Variability:

Seeing Source:

The Telescope I used

Sky:

3rd Quarter

Clouds:

Thin Clouds

Wind:

Low

Seeing Value:

0.90

Seeing Variability:

Seeing Source:

The Telescope I used

Sky:

4th Quarter

Clouds:

Thin Clouds

Wind:

Low

Seeing Value:

1.10

Seeing Variability:

0.2

Seeing Source:

The Telescope I used

Sky:

Delete
Edit

Program:

Proposal:

2012B-0001

Target of Oportunity:

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 [1]

Institution:

Fermilab

Instrument:

CTIO 4m DECam

Total Program Time:

Delete [2]
Edit [3]

Add [4]

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