You are here

CTIO Home

ENR CTIO Blanco 4-m 2023-05-18

Primary tabs

Date: 
Thursday, May 18, 2023
Telescope: 
CTIO Blanco 4-m
Submitter: 
Erin Kado-Fong
Submitter Email: 
erin.kado-fong@yale.edu
Observer Support: 
Jacqueline Seron
Night Assistant: 
Alberto Alvarez
Also Present: 
Guillermo Damke, Xinjun Chen, Charlie Tolley, Arjun Dey, David Schlegel
Problems: 

None.

Comments: 

None.

No instrument problems but the weather conditions were poor. We had overcast skies with transparency < 0.1 for most of the night. Seeing was between 0.95-1.4 arcsec.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky : 
6
2nd Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
1.40
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
6
3rd Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.4
Seeing Source: 
The Telescope I used
Sky: 
6
4th Quarter
Clouds: 
Overcast
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
7
Program: 
Proposal: 
2020B-0288
Target of Oportunity: 
No
Time Observed: 
0.0
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
5.75
Time lost other: 
0.0
Description: 
Merian Survey
Primary Investigator: 
Alexie Leauthaud
Email: 
alexie@ucsc.edu
Institution: 
UCSC
Total Program Time: 
5.75
Proposal: 
2014B-0404
Target of Oportunity: 
No
Time Observed: 
5.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
4.75
Time lost other: 
0.0
Description: 
DECaLS
Primary Investigator: 
Schlegel
Email: 
DJSchlegel@lbl.gov
Institution: 
Lawrence Berkeley National Laboratory
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
10
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2023-05-18 5.25 0.0 0.0 10.5 0.0 15.75