You are here

CTIO Home

ENR CTIO Blanco 4-m 2025-09-08

Primary tabs

Date: 
Monday, September 8, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
Yuchen Tang
Submitter Email: 
tangyuchen@westlake.edu.cn
Observer Support: 
Hernan Tirado
Night Assistant: 
Alberto Alvarez
Also Present: 
Rodrigo Hernandez, Roberto Aviles, K. Boutsia, Yuchen Tang, G. Damke
Problems: 

None.

Comments: 

At the beginning of the night copilot was successfully tested.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
0.95
Seeing Variability: 
0.6
Seeing Source: 
CTIO Seeing monitor
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.00
Seeing Variability: 
0.4
Seeing Source: 
CTIO Seeing monitor
Sky: 
0
3rd Quarter
Clouds: 
Clear
Seeing Value: 
1.20
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: 
2025B-560332
Target of Oportunity: 
No
Time Observed: 
9.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
DREAMS
Primary Investigator: 
Zang
Email: 
weicheng.zang@cfa.harvard.edu
Institution: 
Harvard
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
9.25
Proposal: 
2023B-184194
Target of Oportunity: 
No
Time Observed: 
0.0
Time Engineering: 
0.75
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Efficiently Mapping the z>2 Universe with Medium-Band Filters
Primary Investigator: 
Dey/Schlegel
Email: 
arjun.dey@noirlab.edu
Institution: 
NOIRLab
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
0.75
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-09-08 9.25 0.75 0.0 0.0 0.0 10