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INDI Library v1.8.1 Released (09 Sep 2019)

Monthly maintenance release INDI v1.8.1

Unrequested meridian flip through capture module?

5 months 1 week ago
pentaxian23
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Unrequested meridian flip through capture module? #37345

knro wrote: The one in capture module is to flip when IN CAPTURE.

The one in mount module is to flip at any time the mount is tracking even when you're not capturing.

What can we do to make this more clear? some more description? tooltip ?


Tool tips are the best. Nobody reads manuals as you know ;-) Things are supposed to be plug and play and intuitive to operate.

But I believe there should only be one control or at least they are the same, just different access points - i.e. change one and the other changes too. But I don't see the need for more than one. If I were looking for a meridian flip control, I would NOT look in the capture pane, I would look in the mount pane. And of course one would expect it to not flip in the middle of a capture.

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5 months 1 week ago
wvreeven
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Unrequested meridian flip through capture module? #37346
What confuses me is this: is there really need for two meridian flip settings? When in capture you're usually tracking as well, right? So does the mount perform a meridian flip when in capture and the capture setting is not ticked but the mount setting is? Won't simply ONE meridian flip setting suffice? If the last question can be answered with YES then I'd propose to remove the one in the capture setting completely.


Wouter

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4 months 2 weeks ago
mlarsson
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Unrequested meridian flip through capture module? #38555
Hi!

I got another one now. I have set MF in capture module, and saved the sequence. THen running via Scheduler. It is set to do a MF at HA 0.30. At HA -01:24, it tries to flip. Mount does not flip of course.

Checkbox checked both in capture and mount module. 0.30. But what happens is an attempted flip at 01:24. Much much too early. I have no idea whatsoever of why it tries to flip.

Log attached.

Magnus


C8, Losmandy G11, Canon 1000D astromodified.
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4 months 2 weeks ago
Lead_weight
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Unrequested meridian flip through capture module? #38561

knro wrote: The one in capture module is to flip when IN CAPTURE.

The one in mount module is to flip at any time the mount is tracking even when you're not capturing.

What can we do to make this more clear? some more description? tooltip ?


I honestly think you just need the one flip option on the mount control panel. Either you want a meridian flip or not, even if you're not capturing, but the mount is still tracking an object across the meridian.

-Andrew
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4 months 2 weeks ago
schwim
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Unrequested meridian flip through capture module? #38563
Happened to me to.... Don't think I turned it on as I didn't know it was there in the mount module.

Maybe the best approach in the mount module would be to default to whatever the mount's controller wants to do (default in Ekos: no action). Then call the option in the mount module a type of slew limit or override to the mount's own behavior.

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4 months 2 weeks ago
sterne-jaeger
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Unrequested meridian flip through capture module? #38564
Dear all experiencing an unexpected meridian flip: I will take a closer look into the log files and will come back to you.

Just one thing you could check in the meanwhile: Magnus (and maybe others as well): in your log file from 29.4. the MF happened while running a schedule job, not only a capture job. Is it possible that in your capture job MF is selected?

Since the scheduler reloads a capture job each time it executes it, it could happen that a previously disabled MF is enabled once again.

Please check or best please post your scheduler and capture jobs as well.

Wolfgang

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4 months 2 weeks ago
mlarsson
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Unrequested meridian flip through capture module? #38572
Hi!

Yes, MF was enabled in the capture job enabled by the scheduler in last night's job. It was highly intentional. But it initiated an MF at a very strange time, long before the HA of 0.3 (I think) that I had set.

Magnus


C8, Losmandy G11, Canon 1000D astromodified.

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4 months 2 weeks ago
sterne-jaeger
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Unrequested meridian flip through capture module? #38580
Hi Magnus,
could you please check next time, whether the mount tab shows the right RA-values and the expected HA-value? And is it correct what is displayed for "Meridian flip in ... "?

Because the decision whether a meridian flip is necessary is taken from the current telescope position. Here is the relevant code snippet:
dms lst = KStarsData::Instance()->geo()->GSTtoLST(KStarsData::Instance()->clock()->utc().gst());
dms ha(lst - telescopeCoord.ra());
The meridian flip is executed as soon as a) no capture is running and b) the current HA > 0

As long as this incident is running, please disable the meridian flip in your capture sequence and set it directly in the mount tab - if you are willing to execute a meridian flip.

Wolfgang

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4 months 2 weeks ago
sterne-jaeger
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Unrequested meridian flip through capture module? #38582

wvreeven wrote: What confuses me is this: is there really need for two meridian flip settings? When in capture you're usually tracking as well, right? So does the mount perform a meridian flip when in capture and the capture setting is not ticked but the mount setting is? Won't simply ONE meridian flip setting suffice? If the last question can be answered with YES then I'd propose to remove the one in the capture setting completely.

Wouter, many thanks for your comment, it sounds very reasonable. The only explanation is "historical reason". It used to be only in the capture tab, but it turned out, that having it only there could create problems. For example aborted captures led to the situation that a meridian flip has been missed - which is problematic when some clouds fly by.

That's why I came across with the idea to shift it to the mount tab. The two ones are in sync, so if you change it in one place the other one is updated. But what really makes most sense, to be discussed. What about if we separate the discussion about an appropriate place from the problems described here?

Wolfgang

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4 months 2 weeks ago 4 months 2 weeks ago by wvreeven.
wvreeven
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Unrequested meridian flip through capture module? #38583
Thanks for the explanation Wolfgang. And I agree that this should be discussed in a separate thread. Could you please open one?


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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4 months 2 weeks ago
sterne-jaeger
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Unrequested meridian flip through capture module? #38585
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4 months 2 weeks ago
mlarsson
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Unrequested meridian flip through capture module? #38590
Hi!

Here is my sequence file that I used for that scheduler job last night.

I can not confirm the RA-values, since it was yesterday, but I can confirm that the telescope was imaging M51, the scheduler was targeting M51, and since it was M51 on the subs, it was pointing in the right direction. I can confirm that the value for MF (whether 0.3 or 0.4, I don't remember) as set both in the mount and the capture module, when the sequence was loaded (setting it in capture makes it be checked in mount too, and with the same value, at least for me....?)

I can confirm that despite the setting of MF to occur at HA 0.3, it did initiate a flip at about HA -01:24, read from the mount tab. SO: mount tab showed HA -01:24, and MF at HA 0.3.

I will not be doing much more of this for some time now, since my garden will be dug up and remade... and that is where I'm imaging from.. but I'll hang around here and try to be of help even so.

Best,

Magnus


C8, Losmandy G11, Canon 1000D astromodified.
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