×

INDI Library v2.0.7 is Released (01 Apr 2024)

Bi-monthly release with minor bug fixes and improvements

Read More...

Meridian flip still working for people?

  • Posts: 365
  • Thank you received: 32

Meridian flip still working for people? was created by Vincent Groenewold

It's probably just a problem I experienced with my setup, but just now I scheduled a session (with the scheduler) which included a meridian flip and it didn't actually command one. I'll check what the logs say later (still taking pictures), but I didn't notice anything in the scheduler output.
7 years 4 weeks ago #15477

Please Log in or Create an account to join the conversation.

  • Posts: 158
  • Thank you received: 32

Replied by Bill on topic Meridian flip still working for people?

What was the setting you used and the Hour Angle at the time you started?
7 years 4 weeks ago #15487

Please Log in or Create an account to join the conversation.

  • Posts: 643
  • Thank you received: 62

Replied by Magnus Larsson on topic Meridian flip still working for people?

Hi!

Check these threads;

indilib.org/forum/mounts/1979-mount-meridian-flip.html

indilib.org/forum/mounts/1978-no-meridia...-losmandy-mount.html

Does that help? I'm adjusting my safety limits to make the mount flip, still not really satisfied though. What mount are you using?

Magnus
7 years 4 weeks ago #15494

Please Log in or Create an account to join the conversation.

  • Posts: 365
  • Thank you received: 32

Replied by Vincent Groenewold on topic Meridian flip still working for people?

When I started I was at about 1:30 hours before the HA. It continued till about 15 min past that and I cancelled it as that seems strange. I parked the mount, manually selected the target and it correctly did a flip, so it looks like the mount wasn't commanded to do so, I see nothing in the blogs to indicated the command was issued.
Last edit: 7 years 4 weeks ago by Vincent Groenewold.
7 years 4 weeks ago #15496

Please Log in or Create an account to join the conversation.

  • Posts: 158
  • Thank you received: 32

Replied by Bill on topic Meridian flip still working for people?

The logs will probably tell the story well. If you had a subframe that was being imaged at the time the flip was needed, that would need to finish before the flip. I tested meridian flip the other night and it worked well, although I forgot to check what Jasem was curious about.
7 years 4 weeks ago #15497

Please Log in or Create an account to join the conversation.

  • Posts: 365
  • Thank you received: 32

Replied by Vincent Groenewold on topic Meridian flip still working for people?

Ah I didn't look very well, I had too many restarts so my log became a bit crowded. :) So this is what the log says;
2017-03-21T22:42:54.467 - DEBG - Capture:  "Current hour angle 0.06 hours exceeds meridian flip limit of 0 hours. Auto meridian flip is initiated."
2017-03-21T22:42:54.468 - DEBG - Guide:  "Autoguiding aborted."
2017-03-21T22:42:54.469 - DEBG - ISD:Telescope: Sending coords RA  9.96992  DEC  69.2521
2017-03-21T22:42:54.482 - DEBG - Guide: received guide frame.
2017-03-21T22:42:54.517 - DEBG - EQMod Mount :  "Starting Goto RA=9.96992 DE=69.2521 (current RA=10.0501 DE=64.6439) "
2017-03-21T22:42:54.519 - DEBG - EQMod Mount :  "GOTO ALign Nearest: delta RA = 0.080222, delta DEC  = -4.608223 "
2017-03-21T22:42:54.520 - DEBG - EQMod Mount :  "Aligned Eqmod Goto RA=10.0501 DE=64.6439 (target RA=9.96992 DE=69.2521) "
2017-03-21T22:42:54.520 - DEBG - EQMod Mount :  "Setting Eqmod Goto RA=10.0501 DE=64.6439 (target RA=9.96992 DE=69.2521) "
2017-03-21T22:42:54.521 - DEBG - WARNING: Phonon::createPath: Cannot connect  Phonon::MediaObject ( no objectName ) to  Phonon::AudioOutput ( no objectName ).
2017-03-21T22:42:54.565 - DEBG - EQMod Mount :  "Slewing mount: RA increment = 82, DE increment = 0 "
2017-03-21T22:42:56.536 - DEBG - EQMod Mount :  "Slewing to RA:  9:58:12 - DEC: 69:15:08 "
2017-03-21T22:42:56.560 - DEBG - EQMod Mount :  "Iterative Goto (1): RA diff = 0.51 arcsecs DE diff = 0.03 arcsecs "
2017-03-21T22:42:56.562 - DEBG - EQMod Mount :  "Telescope slew is complete. Tracking TRACK_SIDEREAL... "
2017-03-21T22:44:24.017 - DEBG - Capture:  "Telescope meridian flip timed out. Please make sure your mount supports meridian flip."

Which it never did before, it ofcourse does support a flip. Besides that, should the scheduler not abort in this case? My guess is that the command wasn't processed well by the mount for some reason.
Last edit: 7 years 4 weeks ago by Vincent Groenewold.
7 years 4 weeks ago #15498

Please Log in or Create an account to join the conversation.

Replied by Jasem Mutlaq on topic Meridian flip still working for people?

This is why I put the HA > 0.1 just to be sure the mount is not going to ignore the command when HA = 0 exactly
7 years 4 weeks ago #15500

Please Log in or Create an account to join the conversation.

  • Posts: 365
  • Thank you received: 32

Replied by Vincent Groenewold on topic Meridian flip still working for people?

Ohhh, right, I didn't know that is how it works. Why doesn't ekos not issue the command again then to be sure?
7 years 4 weeks ago #15501

Please Log in or Create an account to join the conversation.

  • Posts: 365
  • Thank you received: 32

Replied by Vincent Groenewold on topic Meridian flip still working for people?

Mmm, interesting. I now tried the HA>0.1 and the mount still didn't flip, just continued imaging. Same things in the logs using an AZ-EQ6 and EQMod driver.
7 years 3 weeks ago #15659

Please Log in or Create an account to join the conversation.

Replied by Jasem Mutlaq on topic Meridian flip still working for people?

I tried in simulation and it works. I will try today using my EQMod to see if there are any issues.
The following user(s) said Thank You: Vincent Groenewold
7 years 3 weeks ago #15670

Please Log in or Create an account to join the conversation.

  • Posts: 1309
  • Thank you received: 226

Replied by Andrew on topic Meridian flip still working for people?

I had a failed meridian flip. It may have been set to >0 though.
7 years 3 weeks ago #15672

Please Log in or Create an account to join the conversation.

  • Posts: 365
  • Thank you received: 32

Replied by Vincent Groenewold on topic Meridian flip still working for people?

I think it should also work at >0, but it may be the same issue. It's not that I missed a recent setting in the eqmod driver right?
7 years 3 weeks ago #15677

Please Log in or Create an account to join the conversation.

Time to create page: 0.291 seconds