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CTIO Home > ENR CTIO Blanco 4-m 2021-02-19

ENR CTIO Blanco 4-m 2021-02-19

Date: 
Friday, February 19, 2021
Telescope: 
CTIO Blanco 4-m
Submitter: 
Andrew Pace, Alex Ji, Alex Drlica-Wagner
Submitter Email: 
apace@andrew.cmu.edu
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Clara Martinez-Vazquez, Alfredo Zenteno, Armin Rest, Dillon Brout
Problems: 

There were issues with the telescope.  Images near the zenith are elongated.  We took ~30 minutes of exposures with this problem that are all bad.  We spent ~1-1.5 hours trying to fix/diagnose this issue. We starting taking exposures at very high airmass 1.7-2 that seem to be ok. 

In the second half we observed at airmass ~> 1.2. We did not experience problems. 

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
0.80
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
0.90
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
0.80
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Seeing Value: 
0.90
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky: 
0
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Program: 
Proposal: 
2019A-03-05
Target of Oportunity: 
No
Time Observed: 
2.25
Time Engineering: 
0.0
Time lost technical: 
2.25
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DECam Local Volume Exploration (DELVE) Survey
Primary Investigator: 
Drlica-Wagner
Email: 
kadrlica@fnal.gov [1]
Institution: 
Fermilab
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4.5
Proposal: 
2020A-0415
Target of Oportunity: 
No
Time Observed: 
4.5
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Photometric Time Series of Carinae's Great Eruption
Primary Investigator: 
Armin Rest
Email: 
arest@stsci.edu [4]
Institution: 
STSCI
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2021-02-19 6.75 0.0 2.25 0.0 0.0 9
Source URL (modified on 02/20/2021 - 06:44): http://www.ctio.noao.edu/noao/content/ENR-CTIO-Blanco-4-m-2021-02-19

Links
[1] mailto:kadrlica@fnal.gov
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/35537/delete?destination=print/node/17528
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/35537/edit?destination=print/node/17528
[4] mailto:arest@stsci.edu
[5] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/35538/delete?destination=print/node/17528
[6] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/35538/edit?destination=print/node/17528
[7] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/17528?destination=print/node/17528