Magnus Larsson replied to the topic 'Unrequested meridian flip through capture module?' in the forum. 4 months ago

Hi!
No, the mount did not flip. No movement at the mount at all. If I got it right, Ekos issues a goto to present coordinates. THe mount is already there, so no movement, none at all, as I recall.

No I don't remember the RA position on the RA tab. But Ekos had slewed to and aligned on M51, and it is really M51 on the subs, so in some sense coordinates were right. And the "icon" on the map, showing the position og the telescope, was right on M51.

And sorry, I don't remember the message during the "flip" more than it started post-flip align. But aren't those messages in the log file?

Hope this helps....

Magnus

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Magnus Larsson replied to the topic 'Unrequested meridian flip through capture module?' in the forum. 4 months ago

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

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Magnus Larsson replied to the topic 'Unrequested meridian flip through capture module?' in the forum. 4 months ago

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

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Magnus Larsson replied to the topic 'Unrequested meridian flip through capture module?' in the forum. 4 months ago

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

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Magnus Larsson replied to the topic 'Re:Re:Re:Re:How to schedule two objects based on time?' in the forum. 4 months ago

Hi!

Thanks, I will try that.

So, you set a finishing time for the first job. Just to understand the paramters then: Would it then be possible to have a longer sequence, that does not finish its first run, before the finishing time? Not that I see any immediate benefit from doing so, just thinking.

Magnus

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Magnus Larsson replied to the topic 'Re:Re:Re:How to schedule two objects based on time?' in the forum. 4 months ago

Hi!

OK. I find it a bit difficult to both describe and be clear about my issues, partly because I so far don't know how to test other than at night (when twilight is a real restriction) and it takes time to wait the process out, and I want to spend time imaging ... :)

But: my idea has been to have
job 1: start when twilight is over (using the twilight restriction for start of the job
- be long so I use the whole time a long first job (50 exposures of 300 secs
- and to be interrupted by the second
job 2: I would want this when the object rises above 38 degrees, and then interrupt the first job.
- to keep going until dawn and be interrupted by the twilight restriction

So I use sequence files for both that contains 50 exposures - that streteches beyond the calculated end points.

But it invariably renders the second job invalid. So I guess I would need either to understand why, and/or to have another strategy to accomplish the same thing.

As a side comment: the start-end-restrictions I use seem to apply to both jobs, in Stable. THat is, double clicking on the job shows the same settings for both jobs, even though only the second should have the 38 degrees startup paramater.

Does it help if I produce a log file, does that add to this? But I mean, the log file does not contain the "invalid" because I never run it in that state.

Magnus

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Magnus Larsson replied to the topic 'Re:Re:How to schedule two objects based on time?' in the forum. 4 months ago

Hi!

Just noted that on my R-Pi running stable (not nightly), scheduler starts immediately, ignoring the "Twilight" constraint. So I shifted to a SD-card with Stellarmate and Nightly, and now it respects the twilight constraint.

Could my problems above be related to having all happened on Stable, rather than Nightly?

Magnus

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Magnus Larsson replied to the topic 'Re:Re:How to schedule two objects based on time?' in the forum. 4 months ago

Hi!

OK, so here is a file for 2 jobs. First scheduled to stop at 2.30 am, second to start at 2.40 am. Then there is the twilight restriction - I'd like the mount to park at dawn. But second job is rendered invalid. WHat do I do wrong here?

Magnus

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Magnus Larsson replied to the topic 'Re:How to schedule two objects based on time?' in the forum. 4 months ago

Hi!

OK. I'm trying to avoid depending on calculating number of exposures or repeats, since time to a large degree depends on focusing, and that is not predictable for me. So I'm looking for other ways.

So you're saying I could use the end and altitude restriction parameters. Hrm. When I've tried that, they seem to apply not just to job no2, but to the whole process, rendering one job invalid. But you are saying that I should be able to set such paramters (such as end time) per job?

Magnus

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Magnus Larsson created a new topic ' How to schedule two obes based on time?' in the forum. 4 months ago

Hi!

I'm trying to get my head around what I really can do with the scheduler. Tonight, I wanted to image M101 until 2.40 am, when NGC6888 becomes visible for me at 38 degrees altitude (northeast). Any suggestions for how I could set the scheduler for this? I try setting it with an abundance of exposures for M101, thinking that it should be interrupted at 2.40 and switching to next job (giving second job highter priority). But that renders the second job invalid, because the first (M101) will continue until dawn.

So: is there a way to have a second job interrupt a first, swiching tagets based on either altitude or time?

Magnus

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Magnus Larsson replied to the topic 'Under-Voltage error' in the forum. 4 months ago

Hi!

I run my Rasberry Pi through a DC cenverter LM317 type (linear, not switched) that I've set to slightly more than 5.5 Volts. I still get these undervoltage warnings. FOr my portable setup, this converter is powered by a 12 V lead battery (car battery type), for my stationary, through a AC-DC converter giving 12 V out.

Magnus

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Eric thanked Magnus Larsson in topic How to focus in Ha? 5 months ago

Magnus Larsson replied to the topic 'Unrequested meridian flip through capture module?' in the forum. 5 months ago

Hi!

Should have responded to that earlier. Same here, neither is/was selected (to the best of my knowledge).

Magnus

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Magnus Larsson created a new topic ' Unrequested meridian flip through capture module?' in the forum. 5 months ago

Hi!

I've seen this a few times before, now posting about it:

I was imaging yesterday, using the capture module, not the scheduler. I was imaging M101, at this point in time close to east, or at least quite far from the meridian. I was about to shut it all down because of incoming clouds, when Ekos suddenly initiated a meridian flip (not requested by me, checbox unchecked) - and the meridian flip does not work with the Losmandy Gemini 2 (it needs a checkbox to be checked in the handcontrol, that the driver currently cannot handle), so nothing happened with the mount, but Ekos started post-flip alignment.

What is going on here? Log attached. Unfortunately a lot of debug stuff from Moonlite is included, making it huge. The meridian flip is intiated at 23:16:30.541, line 87380.

Magnus

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Magnus Larsson replied to the topic 'How to focus in Ha?' in the forum. 5 months ago

Hi!

My idea with binning has been precisely that I get a better S/N ratio, and therefor the focusing should be improved. However, I've also done it to find suitable stars, something that in some parts of the sky is not that easy with my f/9 scope.

I found this article about binning, where they also argue that it can be useful for focusing:

hamamatsu.magnet.fsu.edu/articles/binning.html

Regarding multiple stars - the full frame focusing in Ekos - anyone got good experiences with that?

Magnus

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