Date:
Saturday, August 29, 2015
Telescope:
CTIO Blanco 4-m
Submitter:
Kathy Vivas
Submitter Email:
Observer Support:
Manuel Hernandez
Night Assistant:
Alberto Alvarez
Also Present:
Leo Paredes
Problems:
Very smoth night in general.
DECAL error at 5:58am during the last exposure of the third sequence of the HysMap-1loop.json. DECAL computer reseted.
I was not able to find skype in observer3. Klaus said it was there but when I tried to open it from a terminal it returns an error.
Sound system was connected to observer1. Leonardo changed it to observer3.
GUIs crashed very few times tonight (only three times). However, I noticed a new behaviour: now all GUIs crash at the same time. This I hadn´t seen before. They were easily recovered by refreshing them.
I did not see the 7:20am slow down (well, I am finishing the observations at 7am, so I will miss that part).
Program:
Proposal:
2013A-9999
Target of Oportunity:
No
Time Observed:
10.75
Time Engineering:
0.0
Time lost technical:
0.0
Time lost weather:
0.0
Time lost other:
0.0
Description:
DECam engineering
Primary Investigator:
A. Walker
Email:
Institution:
NOAO
Instrument:
CTIO 4m DECam
Organization:
NOAO
Total Program Time:
10.75
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2015-08-29 | 10.75 | 0.0 | 0.0 | 0.0 | 0.0 | 10.75 |
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Night started clear and I did the full sequence of Star Flats in ugrizY and VR. Then, I did the first calspec standard (LDS7498). Second standandard was not observed because it reached the limit of proximity to the moon. Taking adavantage of the clear skies, I observed several field for project 2015A-0322.
Finally, following Tim's instructions, the Hysteresis observations were done. Clouds came in during the third sequence. Not very thick clouds. I continued observing. The fourth loop had to be interrupted due to dawn. We got back to aos5 and allowed to focus again.
At the start of the night, I started quickreduce. However, spikes higher than 500 were seen in the SVE max_queue_size telemetry plot. By Klaus recommendation, I stopped quickreduce. No more high spikes were observed the rest of the night.
In a different matter, the ladies room has a leak coming from the ceiling. My understanding is that this is being taking care of already. The smell in the bathroom is awful (likely due to the humidity).