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INDI Library v1.8.5 Released (19 Apr 2020)

April 2020 release of INDI Library v1.8.5 introduces new drivers while providing fixes and improvements to existing devices and core framework.

Meridian Flip Configuration

3 months 3 weeks ago
RDBeck
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Meridian Flip Configuration #49295
I guess I don't understand how to configure the meridian flip for my EQ6-Pro. I put HZ>0.5 hours into the dialog box for the mount, and EKOS stayed on the west side of the pier more than an hour past vertical. The message about upcoming flip was saying it would be more than an hour for the automated flip. However, the mount was pushing my camera into the pier. Is there a comprehensive demonstration of how to get the mount to approach a target on the correct side of the pier? I found a YouTube video of a meridian flip in the CCD module.

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3 months 3 weeks ago
sterne-jaeger
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Meridian Flip Configuration #49297
As stated in the other thread , it seems to be a configuration problem with EQMOD.

If you want to see how it works, use the simulators for mount and CCD. Slew to a position close but east of the meridian and wait until the meridian is crossed. Then you should see that the mount takes a roundtrip as it is typical for a meridian flip.

- Wolfgang

TSA-120 + FSQ-85 + GSO 150/750 | Avalon Linear + M-zero | Moravian G2-8300 + ASI 1600mm pro + ASI 294mc pro | KStars/INDI on Raspberry Pi 4 with Raspbian 10

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3 months 3 weeks ago
wvreeven
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Meridian Flip Configuration #49299
I use EQMod with my HEQ5 and EQ6-R all the time and meridian flips always happen very shortly after the limit set by me. I have it set to 0.5h as well. The mount tab tells you how long to go until a meridian flip will happen. What version of KStars are you using? As usual, debug logs help to investigate what was going on.

Wouter

ASI1600MM-Pro Cooled and filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R
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3 months 3 weeks ago 3 months 3 weeks ago by RDBeck.
RDBeck
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Meridian Flip Configuration #49304
I can confirm the simulator (when pier side is enabled) performs as I would expect. Slews to a position from east of the meridian to >0.5 hours west of the meridian swap sides from the west side of the pier to the east side of the pier.

When I pointed the scope at a location just east of the meridian, the scope was on the west side pointing east. It didn't switch after it was 0.5 hour beyond the meridian. However, I followed up by pointing the scope near the NCP and the following slew to to the same target was east pointing west. Note the capture module was not being utilized on any of the simulations.

I ran another simulation with captures running, and the flip occurred as expected.

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3 months 3 weeks ago 3 months 3 weeks ago by RDBeck.
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Meridian Flip Configuration #49305
I'm using KStars 3.40 from the PPA on Kubuntu 19.10.

I didn't have the mount logs recorded. I have enabled them now. The next time I'm out (cloudy for several nights is forecast), I should have mount logs as well.

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3 months 3 weeks ago
DerPit
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Meridian Flip Configuration #49362
OK, someone correct me if I'm wrong, but AFAIR meridian flip is only active during capture and/or when the scheduler is running. So in doubt for your tests use the simulator camera to run a sequence.
But if the mount display of ekos tells you it is still 1h until flip when the scope is already past vertical, most likely the issue is either a wrong time or a wrong location. Check both, I'd say...

openSUSE Tumbleweed KStars git INDI git
GPDX+EQMOD, CEM60EC, ASI1600+EFW+EAF+ASI290 mini

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3 months 3 weeks ago
RDBeck
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Meridian Flip Configuration #49363
Time & location have been checked and confirmed to be correct. I will double-check at the mount when weather allows.

I guess the solution may be to manually force the the mount to pier east when in a situation such as I was.

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3 months 3 weeks ago
sterne-jaeger
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Meridian Flip Configuration #49366

OK, someone correct me if I'm wrong, but AFAIR meridian flip is only active during capture and/or when the scheduler is running. So in doubt for your tests use the simulator camera to run a sequence.

Indeed, thats wrong. The meridian flip is issued as soon as the constraints are met. If a capture is running, the mount waits until the running capture is finished an pauses it until the flip is completed.

So for testing with the real hardware, there is no need to wait for good weather, Simply position the scope close east of the meridian and have it tracking. Then a meridian flip should take place.

TSA-120 + FSQ-85 + GSO 150/750 | Avalon Linear + M-zero | Moravian G2-8300 + ASI 1600mm pro + ASI 294mc pro | KStars/INDI on Raspberry Pi 4 with Raspbian 10
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3 months 3 weeks ago
DerPit
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Meridian Flip Configuration #49367

sterne-jaeger wrote: Indeed, thats wrong. The meridian flip is issued as soon as the constraints are met. If a capture is running, the mount waits until the running capture is finished an pauses it until the flip is completed.


Mea culpa then - has this changed? ISTR that I had run into this, though about a year ago.....

openSUSE Tumbleweed KStars git INDI git
GPDX+EQMOD, CEM60EC, ASI1600+EFW+EAF+ASI290 mini

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3 months 3 weeks ago
sterne-jaeger
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Meridian Flip Configuration #49368
I would say we introduced it roughly a year ago. Meanwhile the meridian flip is completely independent from Capture and Scheduler

TSA-120 + FSQ-85 + GSO 150/750 | Avalon Linear + M-zero | Moravian G2-8300 + ASI 1600mm pro + ASI 294mc pro | KStars/INDI on Raspberry Pi 4 with Raspbian 10
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3 months 3 weeks ago
RDBeck
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Meridian Flip Configuration #49369
Despite your comment that the meridian flip is independent of the capture module, my simulation didn't perform the flip unless the capture module was running. This seems consistent with my experience under the stars.

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3 months 3 weeks ago
sterne-jaeger
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Meridian Flip Configuration #49372
Hm, that's strange. Could you please post the logs? Maybe there is something else wrong - or just a new bug occurred.

TSA-120 + FSQ-85 + GSO 150/750 | Avalon Linear + M-zero | Moravian G2-8300 + ASI 1600mm pro + ASI 294mc pro | KStars/INDI on Raspberry Pi 4 with Raspbian 10

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