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CTIO Home > ENR CTIO Blanco 4-m 2025-10-04

ENR CTIO Blanco 4-m 2025-10-04

Date: 
Saturday, October 4, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Guillermo Damke (1st half) /
Submitter Email: 
guillermo.damke@noirlab.edu
Observer Support: 
Rodrigo Hernandez
Night Assistant: 
Alberto Alvarez
Also Present: 
Roberto Avilés, Sean Points
Problems: 

First-half: None.

Second-half: there was once failed guiding because the guide star is close to the edge, but this was resolve soon, and only one 3-min exposure was affected.

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.50
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
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Program: 
Proposal: 
AEON
Target of Oportunity: 
No
Time Observed: 
5.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
NEWFIRM AEON observations
Primary Investigator: 
Guillermo Damke
Email: 
guillermo.damke@noirlab.edu [1]
Institution: 
CTIO
Instrument: 
CTIO 4m Newfirm
Organization: 
NOAO
Total Program Time: 
5
Proposal: 
2025B-897187
Target of Oportunity: 
No
Time Observed: 
4.0
Time Engineering: 
0.0
Time lost technical: 
0.5
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Narrow-Band H-alpha Survey of the Large-Scale Structure around a QSO Cluster
Primary Investigator: 
Yongming Liang
Email: 
ymliang@icrr.u-tokyo.ac.jp [4]
Institution: 
U of Tokyo
Instrument: 
CTIO 4m Newfirm
Organization: 
N/A
Total Program Time: 
4.5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-10-04 9.0 0.0 0.5 0.0 0.0 9.5
Source URL (modified on 10/05/2025 - 06:34): http://www.ctio.noao.edu/noao/content/ENR-CTIO-Blanco-4-m-2025-10-04

Links
[1] mailto:guillermo.damke@noirlab.edu
[2] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44722/delete?destination=print/node/23240
[3] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44722/edit?destination=print/node/23240
[4] mailto:ymliang@icrr.u-tokyo.ac.jp
[5] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44723/delete?destination=print/node/23240
[6] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/44723/edit?destination=print/node/23240
[7] http://www.ctio.noao.edu/noao/field-collection/field-nr-prog/add/node/23240?destination=print/node/23240