I guess you should also remodel every time you do some load changes or tweaking of balance? I have to comment, potentially adversely to AP sales. The non-encoder option is so freaking

What is the recommended guide rate setting? My experience with premium mounts is that you reduce the guide rate. The other mount I am using recommends .20 or .25 and I've been pretty happy with

As Ray notes, it depends... Following is likely TMI! For my 200 point model, it took 88'. This is based on the time delta between first and last image, which is all captured in the model file (*.PNT)

Thank you for confirming. Sam

That depends somewhat on image download time and plate solve time. Faster downloads will reduce time. A faster computer will usually plate-solve faster. Typically it takes about 2-3 points/minute,

On Fri, Feb 12, 2021 at 12:19 PM, Worsel wrote: Bob I have a 200 point model for a non-AE 1100 (PEM enabled) with a 2500 mm scope. I have been able to image (0.54 a-s/pxl) unguided for 15 minutes, but

You shouldn't have to change your model.

Bob I have a 200 point model for a non-AE 1100 (PEM enabled) with a 2500 mm scope. I have been able to image (0.54 a-s/pxl) unguided for 15 minutes, but not consistently. With a 700 mm scope, I think

On Thu, Feb 11, 2021 at 10:20 PM, Peter Nagy wrote: Bob, With or without pointing model using APCC Pro? Peter Hi Peter With a pointing model. I would assume several minutes would be achievable? How

What the hell are you doing bringing common sense to the party! The perfect, simple, cost effective solution to the problem! Brilliant! Steve 8>)

Probably not. I was doing unguided imaging with an encoder mount. I apologize if I misled anyone. A mount that does not have shaft encoders is open loop and is at the mercy of the periodic error that

Bob, With or without pointing model using APCC Pro? Peter

On Tue, Feb 9, 2021 at 11:15 PM, Roland Christen wrote: I have gone up to an hour with 1000mm FL and 5.4 micron pixel camera. -- Roland Christen Astro-PhysicsFirst, excuse me for asking for

As per Roland a year ago answering one of my questions regarding APPM and camera rotation between sessions: Quoting Roland: (That is correct. The camera does not do anything as far as mount

Great job Dean! Don Anderson On Wednesday, February 10, 2021, 11:19:50 a.m. MST, Dean Jacobsen <deanjacobsen@...> wrote:

Thank you Roland and Christopher. Encoder measurement is the obvious choice in hindsight.

A precision encoder is attached to the RA axis and the resultant PE error is measured using software similar to PEMPro. We do about 5 cycles for each mount (takes about 1/2 hour for that measurement).

On Wed, Feb 10, 2021 at 10:39 AM, Roland Christen wrote: Looks good. What is the pixel size binned 2x2?Yes, this was with the 4.63um 2x2 binned pixel configuration. Gain 120 and 240s exposures taken

My guess is a custom bench top jig with an absolute encoder. -Christopher Erickson Observatory engineer Waikoloa, HI 96738 www.summitkinetics.com

This question is simply to satisfy my curiosity. To create the factory installed PEC curve I assume each mount must be tested and track a star like source moving at sidereal rate for several worm