I have pretty much been doing this for the last year as is shown in the first post in this thread. So I must not understand some of the terminology or something. I’ll just keep on doing what I

Thank you Marj, good to hear! I'll be starting my own backlog right away while you're working on this. Clear skies, Sébastien De : main@ap-gto.groups.io <main@ap-gto.groups.io> de la part de Marj

OK, I didn’t see Roland’s reply. Set up APPM to do one line, including both sides of the meridian. My recollection is that when the data collection is finished, then APPM will ask me if I want

Hi Mike, That should have worked. What is the driver version shown in the properties window for an Eltima Virtual Port? -Ray

Typically you should have at least 5 points along each declination arc. Since APPM collects data points along declination arcs, you only need to define a minimum and maximum declination with at

I'm using APCC (APPM is the specific app the builds the model) Getting everything set up is just using APPM. There is excellent documentation on this, and I think Ray covered this in a video tutorial

Dominique, Perfect! I'm glad you got it installed! -Ray

Sébastien , You wrote: Great! Thanks for confirming! This is the best place to post issues you encounter with APCC, APPM, Horizons, and the AP V2 ASCOM driver. I'm going to need more details and

Use APPM to collect the data for your dec arc.

OK, I’m convinced it will work good. But are you using the keypad or are you using it via APCC? And if you are using via APCC, then what is involved in getting everything set up? Do you need to

Dean As an example I do 900sec subs unguided with just Dec Arc tracking @ 480mm on the ASI6200 https://www.brianvalentephotography.com/astrophotography/i-DwvmwzK/A The tracking is so good that when

I think saying this is a "subscription" really confuses things. View the new features as an add-on that you pay for once if you like what you see. If not, then simply don't buy the add-on. If a

You map one Dec arc that the object is on. You already know that. Why is it confusing? You don't need an all sky model for that to work. Rolando

Now I am confused. How is the model created? How do we obtain the data? I am going to have to wait for the manual. -- Dean Jacobsen Astrobin Image Gallery -

Chris Using Windows Un-install without any embellishments worked for me. The new version installed cleanly and all my previous parameters / data was there, i.e. models, PEM, Site. Bryan

Dec arc tracking is an independent model, not relying on the all-sky model. neither relies on the other to work. By the way, for those who are keypad users, we also have similar model building in the

@Roland Christen: King ONLY has benefit if you are perfectly polar aligned. Typical King rate might change the tracking rate by 20 arc sec per hour for a given location, but if your polar alignment

After upgrading does a new model need to be created to best take advantage of dec arc tracking, or will the old model be sufficient? (Obsy mounted). Also when uninstalling the previous version (I

King ONLY has benefit if you are perfectly polar aligned. Typical King rate might change the tracking rate by 20 arc sec per hour for a given location, but if your polar alignment happens to be poor,

I have used Dec arc tracking where the object is off by +- 5 degrees from my Dec line and had good, smooth and accurate results. The scope flex doesn't change much over a 5 degree Dec change, and the