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CTIO Home > ENR CTIO Blanco 4-m 2025-04-20

ENR CTIO Blanco 4-m 2025-04-20

Date: 
Sunday, April 20, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Alfredo Zenteno
Submitter Email: 
alfredo.zenteno@noirlab.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Roberto Aviles
Problems: 

Telescope stopped ("interlock DECam SISPI is now broken"); apparently there is an issue observing around Dec=-20.   About 20 to 30 minutes were lost.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Seeing Value: 
1.60
Seeing Variability: 
0.6
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.90
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
0
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Program: 
Proposal: 
2024B-614257
Target of Oportunity: 
No
Time Observed: 
5.5
Time Engineering: 
0.0
Time lost technical: 
0.5
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Weak lensing mass reconstruction of a sample of highly disturbed merging clusters recently discovered by eROSITA
Primary Investigator: 
Rogério Monteiro-Oliveira
Email: 
rogerionline@gmail.com [1]
Institution: 
Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), Taiwan
Instrument: 
CTIO 4m DECam
Organization: 
DD
Total Program Time: 
6
Proposal: 
2025A-729671
Target of Oportunity: 
No
Time Observed: 
0.0
Time Engineering: 
0.0
Time lost technical: 
0.5
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DESI Transient Survey
Primary Investigator: 
Palmese
Email: 
apalmese@andrew.cmu.edu [4]
Institution: 
Carnegie-Mellon University
Instrument: 
CTIO 4m DECam
Total Program Time: 
0.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-04-20 5.5 0.0 1.0 0.0 0.0 6.5
Source URL (modified on 04/21/2025 - 07:13): http://www.ctio.noao.edu/noao/node/22702

Links
[1] mailto:rogerionline@gmail.com
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44350/delete?destination=print/content/enr-ctio-blanco-4-m-2025-04-20
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44350/edit?destination=print/content/enr-ctio-blanco-4-m-2025-04-20
[4] mailto:apalmese@andrew.cmu.edu
[5] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44351/delete?destination=print/content/enr-ctio-blanco-4-m-2025-04-20
[6] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44351/edit?destination=print/content/enr-ctio-blanco-4-m-2025-04-20
[7] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/22702?destination=print/content/enr-ctio-blanco-4-m-2025-04-20