It has been detected a movement of the telescope in one axis of about one second forward/backward that it can open the AO loop due to skip frames.

IT#8841.

The nudge information has to be communicated with the Observer to prepare or to be alert when the PAUSE has to be set.

How to.

Run the nudge predictor to generate the nudge timing list of events.

Located in: /lbt/lbto/supportscripts/ObserverSupport/
./nudgepredict.py -d 20230402 -e 12 -b 12
Update the date (UT) for the current night.

Example:

lbto@obs1 ObserverSupport ]$ ./nudgepredict.py -d 20230402 -e 12 -b 12
5187110400.0 start MJD sec using backhour 12.0
20230402 is the day to be plotted.
0.0 start hour using backhour 12.0 end hour 12.0
These UT start times will have a nudge if the telescope is tracking.
00:07:54
00:42:02
01:16:10
01:50:18
02:24:26
02:58:34
03:32:42
04:06:50
04:40:58
05:15:06
05:49:14
06:23:22
06:57:30
07:31:38
08:05:46
08:39:54
09:14:02
09:48:10
10:22:18
10:56:26
11:30:34
 
Within a minute before the nudge insert the PAUSE in LUCI

Insert PAUSE in Luci script.

  • Communicate with the AO Operator.

Pause AO from AOS.

  • Observe in the CCD47 for the movements of the star
When movements is done.

Resume AO

  • Use Resume from AOS.
  • Wait for 2 offload

Resume Luci.

-- JuanCarlosGuerra - 06 Apr 2023
Topic revision: r2 - 07 Apr 2023, JuanCarlosGuerra
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