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ENR CTIO Blanco 4-m 2025-01-02

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Date: 
Thursday, January 2, 2025
Telescope: 
CTIO Blanco 4-m
Submitter: 
David James
Submitter Email: 
djames44@gmail.com
Observer Support: 
Manuel Hernandez
Night Assistant: 
Rodrigo Hinojosa
Problems: 

About UT 01:00 while slewing to about RA: 03hrs, DEC = -60 degrees the telescope lost tracking and 4MAP fell over. 

The TelOps support went upstairs and cleaned the RA encoders which seemed to fix the problem.

Lost about 30-minutes on sky. 

Comments: 

None.

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2023B-646244
Target of Oportunity: 
No
Time Observed: 
6.75
Time Engineering: 
0.0
Time lost technical: 
0.5
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
The DECam MAGIC Survey: Mapping the Ancient Galaxy in CaHK
Primary Investigator: 
Ani Chiti
Email: 
achiti@uchicago.edu
Institution: 
The University of Chicago
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
7.25
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2025-01-02 6.75 0.0 0.5 0.0 0.0 7.25