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CTIO Home > ENR CTIO Blanco 4-m 2025-11-05

ENR CTIO Blanco 4-m 2025-11-05

Date: 
Wednesday, November 5, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Gabriel Pichihueche (1st half)/Guillermo Damke (2nd half)
Submitter Email: 
gabo.pichihueche@gmail.com
Observer Support: 
Manuel Hernandez
Night Assistant: 
Claudio Aguilera
Also Present: 
Sean Points
Problems: 

First half:

We had some problems with the guider's gmap, around 20 minutes were lost.

Second half:

6:20 UT approx. Error with AEON target. Message in OSM: "'ascii' codec can't encode character '\u2013' in position 28: ordinal not in range(128)."

Target SGR0526-66 (submitter: sanand)

Comments: 

6:05 UT: Target ZTF25abjlnnh has elongated stars, likely due to wind hitting the instrument (dome az=12 deg, wind dir 353 deg. Speed 6.3 m/s).

07:41 Winds speed is 11 m/s

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Thin Clouds
Wind: 
Medium
Seeing Value: 
1.50
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky : 
1
2nd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.80
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.50
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
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Program: 
Proposal: 
2025B-587252
Target of Oportunity: 
No
Time Observed: 
4.0
Time Engineering: 
0.0
Time lost technical: 
0.25
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
The largest H-alpha survey of galaxy clusters at intermediate redshifts
Primary Investigator: 
Cristobal Sifon
Email: 
cristobal.sifon@pucv.cl [1]
Institution: 
PUCV
Instrument: 
CTIO 4m Newfirm
Organization: 
Chile
Total Program Time: 
4.25
Proposal: 
AEON
Target of Oportunity: 
No
Time Observed: 
4.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
AEON observations
Primary Investigator: 
Guillermo Damke
Email: 
guillermo.damke@noirlab.edu [4]
Institution: 
CTIO
Instrument: 
CTIO 4m Newfirm
Organization: 
NOAO
Total Program Time: 
4.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-11-05 8.25 0.0 0.25 0.0 0.0 8.5
Source URL (modified on 11/07/2025 - 01:38): http://www.ctio.noao.edu/noao/content/ENR-CTIO-Blanco-4-m-2025-11-05

Links
[1] mailto:cristobal.sifon@pucv.cl
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44792/delete?destination=print/node/23348
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44792/edit?destination=print/node/23348
[4] mailto:guillermo.damke@noirlab.edu
[5] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44793/delete?destination=print/node/23348
[6] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44793/edit?destination=print/node/23348
[7] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/23348?destination=print/node/23348