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

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. 2 days 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. 3 days 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 days 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. 5 days 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. 6 days 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. 6 days 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? 3 weeks ago

Magnus Larsson replied to the topic 'Unrequested meridian flip through capture module?' in the forum. 3 weeks 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. 1 month 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. 1 month 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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Magnus Larsson replied to the topic 'Re:Scheduler and calibration' in the forum. 1 month ago

Hi!

Hrm. I have a clear recollection of seeing PHD2 recalibrate some time, when the scheduler started... but cannot make it happen now.

But: it is not necessary to start PHD2 first. I often start it after Kstars is started. Just need to click connect in the Guide module, and it is up and running.

Magnus

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Magnus Larsson replied to the topic 'How to focus in Ha?' in the forum. 1 month ago

Yes, FW is on the top of my list. Next to a new kitchen... ;)

Magnus

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Magnus Larsson created a new topic ' Scheduler and calibration' in the forum. 1 month ago

Hi!

I would like the scheduler to re-calibrate guding when it starts. I use PHD2. So I check the checkbox "Always reset guide calibration" in Ekos settings, under Scheduler tab. However, when starting the scheduler, it does not calibrate.

What am I missing?

Magnus

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Magnus Larsson replied to the topic 'How to focus in Ha?' in the forum. 1 month ago

Hi!

Thanks for your replies! For the moment, I don't have a filter wheel, just fixed filters, so I need to focus in Ha (filter wheel will come), but that should then be doable.

How about binning? Bad idea or could be useful? I cannot really see what it does to focusing. It does increas S7N ration, though.

Best,

Magnus

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