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ENR CTIO Blanco 4-m 2021-09-23

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Date: 
Thursday, September 23, 2021
Telescope: 
CTIO Blanco 4-m
Submitter: 
Kathy Vivas
Submitter Email: 
kathy.vivas@noirlab.edu
Observer Support: 
Hernan Tirado
Night Assistant: 
Jackie Seron
Also Present: 
Yujin Yang, Scott Sheppard
Problems: 

None.

Comments: 

Engineering during first half. Tests of the new narrow band filter N419. Images look great with the new filter. We recommend to use 1200ms in the guider when using this filter. Star flats for N419, g and i were done under photometric conditions. Also, sequence of 2 spectrophotometric standards were taken in each CCD of the camera. Unfortunately there was not enough time to do a DECal scan of the new filter. It will need to be done either on an upcoming cloudy night or during the October eng.

The level "observer" cannot make changes in the exposure time of the guider yet (this was a feature to be tested today). 

Evening twilight was used to follow up an interesting object by S. Sheppard.

 

Conditions: 
General Conditions
Comment: 
None.
1st Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky : 
0
2nd Quarter
Clouds: 
Clear
Wind: 
Low
Seeing Value: 
1.50
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
3rd Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.20
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
4th Quarter
Clouds: 
Clear
Wind: 
Medium
Seeing Value: 
1.10
Seeing Variability: 
0.2
Seeing Source: 
The Telescope I used
Sky: 
0
Program: 
Proposal: 
2013A-9999
Target of Oportunity: 
No
Time Observed: 
0.0
Time Engineering: 
4.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
Engineering
Primary Investigator: 
A Walker
Email: 
alistair.walker@noirlab.edu
Institution: 
CTIO
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
4
Proposal: 
2021B-0909
Target of Oportunity: 
No
Time Observed: 
0.25
Time Engineering: 
0.0
Time lost technical: 
0.0
Time lost weather: 
0.0
Time lost other: 
0.0
Description: 
A Twilight Survey For Asteroids Interior to Earths Orbit
Primary Investigator: 
S. Sheppard
Email: 
ssheppard@carnegiescience.edu
Institution: 
Carnegie
Instrument: 
CTIO 4m DECam
Organization: 
NOAO
Total Program Time: 
0.25
Proposal: 
2021A-0149
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: 
The DECam eROSITA Survey (DeROSITAS)
Primary Investigator: 
Alfredo Zenteno
Email: 
alfredo.zenteno@noirlab.edu
Institution: 
CTIO
Instrument: 
CTIO 4m DECam
Organization: 
DD
Total Program Time: 
5
Total Times Time Observed Time Engineering Time lost technical Time lost weather Time lost other Total Program Time
2021-09-23 5.25 4.0 0.0 0.0 0.0 9.25