You are here

ENR CTIO Blanco 4-m 2019-03-06

Primary tabs

Date: 
Wednesday, March 6, 2019
Telescope: 
CTIO Blanco 4-m
Submitter: 
Bob Blum
Submitter Email: 
Observer Support: 
Jacqueline Seron
Night Assistant: 
Claudio Aguilera
Also Present: 
Manuel Hernandez
Problems: 

None.

We want to note that we have seen a few "Dome Occlusion Warnings" each night. Always in the north.

The warning typically goes off right as the exposure starts, but with the dome already moving out of the way. So we have logged the alarms, but not reported them as an issue.

In only one case (tonight) did we notice a reduction in throughput (z band from 1.0 to 0.94) because the dome took long enough to get out of the way. See image 830687.

Comments: 

Great run! Muchisimas gracias por todo el apoyo sobre los aƱos a DECaLS. Esta fue la ultima noche!

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
Program: 
Proposal: 
2014B-0404
Target of Oportunity: 
No
Time Observed: 
7.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECaLS
Institution: 
Lawrence Berkeley National Laboratory
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
7.5
Proposal: 
2019A-0332
Target of Oportunity: 
No
Time Observed: 
2.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Trans Neptue
Primary Investigator: 
Sheppard
Institution: 
Carnegie Institution of Washington
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
2
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2019-03-06 9.5 0.0 0.0 0.0 0.0 9.5