Hi Ray, I can confirm that the fixes to the DEC sign problem are now fixed in APCC Pro 1.9.0.7. Thanks Heaps! Craig

Since the V2 driver can talk to APCC using a virtual COM port and my ATrack program uses COM port communications with Voyager, it would be easy to add a COM port command as above, sent to APCC. Craig

For my project it would be easy enough to call APCC with the filename of the model to be loaded. Since I only do 4 targets I could create these models ahead of time. If the tracking for a particular t

Does this mean there is an API available for APCC for use by 3rd party software? If so I could build the 4 DEC arcs and when I switch targets ATrack could send a request to APCC to load a previously s

If the same target is observed with NINA, will APPM be requested to do a new map or does it use an old one? In my case I would be observing the same 4 targets throughout the year. If NINA could build

I have been a major critic of APCC over the last several years due to its poor tracking performance on my 16" RC w/1600AE mount and plate scale of 0.57 arcsec/pixel. So it was with great enthusiasm to

Hi Rouz, Were you able to get a graph using PHD (or PEMPRO) that shows the movement of the main camera over the long exposure time? What we want to make sure is that the tracking is actually moving in

#APCC

PEMPRO will also work, but if you have PHD already setup and you are familiar with it then use it. You want to run tracking curves after each change and compare the results. I would setup a baseline,

#APCC

Rouz, That is correct. Setup PHD to use the main camera, do calibration and such but turn off guiding corrections. That way you will get a good indication of what is happening. Craig

#APCC

One thing to try is to configure your main camera as a guider, but do not make guiding corrections. Then center on a bright star and make a graph of your tracking over say ten minutes. This will show

#APCC

What conditions/actions will cause the Absolute Encoders to go into the "Set" condition? I have a GTO1600AE/CP4 and when I ran the APAE utility it showed the status of the encoders as "Set". I changed

That is great news. Still have not had a clear night yet to try 3 arc lines, weather forecast is showing early next week .. I think the night of the full moon (typical). When using 3 arc lines, what w

Hi Dean, Thanks for sharing your tracking results using DEC arc modeling, this is very useful information for others looking to try it. Looks like 3 arcs works very well, do you know if 2 arcs works?

I will give that a try on my next clear night. First, I will create a new model with two DEC arcs, with the target DEC arc sitting between the two sample arcs. That way the model straddles equally eit

Thanks Ray. Here is the pnt file. It consists of 22 samples along a DEC arc of -15 degrees from HA -3 to the meridian. With refraction correction turned off the Offset error in HA is -170.12. With ref

That is what I said in my first post to this thread, that others are using this temporarily, but it would be useful to summarize the process for others who are not familiar with the technique to try i

Dean, Actually, you can try DEC ARC modelling now. It is very simple, fast and easy to setup. Here is what you do: 1. Run APCC (I am running latest version (v1.8.2.1) 2. Click Pointing Model tab 3. Cl

Call it what you want Ray, the fact is it does work, as long as you do not use the Offset Error terms with refraction. And it is a lot easier to say than "Building an APPM model by sampling only point

Can anyone, who is using APPM to build DEC ARC models, confirm that enabling refraction correction changes the model terms significantly. You can easily run this test during the day by slewing to any

The problem appears to be related to the Offset Error - Hour Angle term in the model. If this term is checked AND refraction correction unchecked then the model term value in the box is -170.12. If I