Date:
Friday, April 27, 2018
Telescope:
CTIO Blanco 4-m
Submitter:
Clara Martínez
Submitter Email:
Observer Support:
Hernan Tirado
Night Assistant:
Claudio Aguilera
Also Present:
Hervé Buoy, Ángel Berihuete
Problems:
At 04:16:18 UT: "Missing CCD extensions"
At 04:39:16 UT: "Component(s) not ready for exposure: FILTER"
Program:
Proposal:
2018A-0059
Target of Oportunity:
No
Time Observed:
10.0
Time Engineering:
0.0
Time lost technical:
0.0
Time lost weather:
0.0
Time lost other:
1.25
Description:
Complementing Gaia from the ground: the COSMIC-DANCE survey
Primary Investigator:
Herve Buoy
Email:
Institution:
Laboratoire d'Astrophysique de Bordeaux
Instrument:
CTIO 4m DECam
Organization:
NOAO
Total Program Time:
11.25
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2018-04-27 | 10.0 | 0.0 | 0.0 | 0.0 | 1.25 | 11.25 |
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At 04:14:41 UT (acquisition number 739827) the observers had a problem with DECam. The image was not digitalized. The alarm history showed the following message: "Missing CCD extensions".
The observers and Claudio decided to restart SISPI. After that they saw that everything was ok (all lights of the system status in green), however, the filters were stacked and did not respond. Here is the alarm of that moment: "Component(s) not ready for exposure: FILTER" (04:39:16 UT).
At that point Claudio called Hernán and he came to the Control Room. Hernán explained to me that the filters were not responding, they decided to go to the Coude room and to switch off-on (waiting a little bit in the middle of both events) the FCM and then they restarted SISPI again.
After doing that, at 05:19:56 UT all worked fine again.