Date   

Re: APPM Models

KHursh
 
Edited

Thanks Marcelo,

I have OpenWeatherMap API key stored in my ASCOM settings, but the pressure still appears editable in APCC pro, so I do. Not sure if I am missing something somewhere.


Storage box for the Mach2 mount

Harley Davidson
 

https://www.youtube.com/watch?v=YAkJfixIkEc

I am using a Ridgid tool box to protect my Mach2 mount.

tony


Re: APPM Models

Marcelo Figueroa
 


You don't need to enter the pressure manually, follow these steps and you can get it (along with temperature and humidity as well) from the internet:

https://ap-gto.groups.io/g/main/message/73588?p=,,,20,0,0,0::Created,,openweathermap,20,2,0,77256891


Re: Do NOT use ASCOM Platform v. 6.5 with APCC Pro #APCC #ASCOM_V2_Driver

Michael 'Mikey' Mangieri
 

I have been using v6.5SP1 (RC1) with no issues thus far although I am still using a 197 point APPM model from a couple of weeks ago which was created with 6.4 installed.

On Nov 28, 2020, at 12:45 PM, Ray Gralak <groups3@gralak.com> wrote:

v6.5SP1 (RC1)


Re: APPM Models

KHursh
 

PS. I am using a Pegasus Astro Powerbox which has real-time temp and humidity monitoring. I enter the atmospheric pressure manually.


Re: Do NOT use ASCOM Platform v. 6.5 with APCC Pro #APCC #ASCOM_V2_Driver

Ray Gralak
 

Ray had noted that we should use v6.5SP1 but Karen’s email references v6.4SP1.

Should we not use any version of 6.5 at this time?
Some clarification:

1) ASCOM Platform v6.4SP1 is okay to still use.

2) ASCOM Platform v6.5 had a serious bug in the Transform class that would cause APPM to produce bad models.

3) You can now *optionally* upgrade to ASCOM Platform v6.5SP1 because it has been released.

However, I just noticed when hovering over the link for v6.5SP1 on the ASCOM web site that it is RC1 (release candidate 1). It is not the official release as I had thought, but it is the default choice now on the web site. That explains why I didn't see an announcement.

So, it is okay to stay with v6.4SP1. If you want to upgrade to v6.5SP1 (RC1), that is okay too. Here is the link:

https://www.ascom-standards.org (click the "Download" button on the right side of the web page)

I am sorry this has been so confusing. The ASCOM naming convention is not helping.

-Ray Gralak
Author of PEMPro
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver


-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Joseph Beyer
Sent: Saturday, November 28, 2020 9:23 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Do NOT use ASCOM Platform v. 6.5 with APCC Pro #APCC #ASCOM_V2_Driver

Ray had noted that we should use v6.5SP1 but Karen’s email references v6.4SP1.

Should we not use any version of 6.5 at this time?


On Nov 27, 2020, at 1:51 PM, Karen Christen <karen@astro-physics.com> wrote:





I’ve also un-pinned this thread from the top of the Messages list on the ap-gto Groups.io group. That was
probably misleading, as well.

Karen

AP



From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Marj Christen
Sent: Friday, November 27, 2020 11:56 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Do NOT use ASCOM Platform v. 6.5 with APCC Pro #APCC #ASCOM_V2_Driver



The website is now updated. Thank you for this discussion.



Clear Skies,



Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com



From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Jerry
Sent: Friday, November 27, 2020 7:59 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Do NOT use ASCOM Platform v. 6.5 with APCC Pro #APCC #ASCOM_V2_Driver



Below is what is currently shown on the AP website (my goto when determining what version of ASCOM
Platform to use):




ASCOM V2 Driver & Platform


ASCOM V2 Driver current version <https://www.gralak.com/apdriver/>

ASCOM V6.4SP1 Platform <https://github.com/ASCOMInitiative/ASCOMPlatform/releases/tag/Build_2695>
for use with the V2 Driver and APCC - Thanks to the ASCOM Initiative <http://ascom-standards.org/index.htm> .
Do not use V6.5 at this time.




--
Karen Christen
Astro-Physics


Re: Do NOT use ASCOM Platform v. 6.5 with APCC Pro #APCC #ASCOM_V2_Driver

Joseph Beyer
 

Ray had noted that we should use v6.5SP1 but Karen’s email references v6.4SP1. 

Should we not use any version of 6.5 at this time?

On Nov 27, 2020, at 1:51 PM, Karen Christen <karen@...> wrote:



I’ve also un-pinned this thread from the top of the Messages list on the ap-gto Groups.io group.  That was probably misleading, as well.

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Marj Christen
Sent: Friday, November 27, 2020 11:56 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Do NOT use ASCOM Platform v. 6.5 with APCC Pro #APCC #ASCOM_V2_Driver

 

The website is now updated. Thank you for this discussion.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Jerry
Sent: Friday, November 27, 2020 7:59 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Do NOT use ASCOM Platform v. 6.5 with APCC Pro #APCC #ASCOM_V2_Driver

 

Below is what is currently shown on the AP website (my goto when determining what version of ASCOM Platform to use):

ASCOM V2 Driver & Platform

ASCOM V2 Driver current version 

ASCOM V6.4SP1 Platform  for use with the V2 Driver and APCC - Thanks to the ASCOM Initiative.  Do not use V6.5 at this time. 


--
Karen Christen
Astro-Physics


Re: AP1100 GTO with AE installed today - but newbie question #Absolute_Encoders

Roland Christen
 

Please contact George on Monday and he will help you install the encoder personality into your CP4.

Rolando



-----Original Message-----
From: Shailesh Trivedi <strivedi@...>
To: main@ap-gto.groups.io
Sent: Sat, Nov 28, 2020 1:18 am
Subject: [ap-gto] AP1100 GTO with AE installed today - but newbie question #Absolute_Encoders #Absolute_Encoders

Today I installed the Renishaw AEs on my AP1100GTO.

I am a newbie, what do I need to do to initialize them and turn them on?

Shailesh

--
Roland Christen
Astro-Physics


Re: APPM Models

KHursh
 

Thanks for the response Ray!

I am using a fairly well sorted and tied down set-up. I have a 120 mm refractor, so no mirror issues as of now. As for the rest of the randomness, who knows. I am not looking for unguided imaging, I just want REALLY good guiding. The Mach2 and my little 30 point model already improved my guiding to around .6 arc-sec rms. This is higher than many people get on lesser mounts, but a vast improvement to what I was getting. I have pretty bad seeing up here in Northern California.

I don't want to fall into sycophancy, but I really am impressed by APCC/APPM, Ray. It is a large part of why I went with the Mach2 over the 1100GTO. The encoders plus APCC pro were the final decision point for me. Nice work!

Kevin


Re: AP1100 GTO with AE installed today - but newbie question #Absolute_Encoders

Bill Long
 

Fix the personality, did you contact AP to do that or did they reach out to you? They did that for me without even having to ask,  so I assume they did the same? 



From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Shailesh Trivedi <strivedi@...>
Sent: Friday, November 27, 2020 11:18 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: [ap-gto] AP1100 GTO with AE installed today - but newbie question #Absolute_Encoders #Absolute_Encoders
 
Today I installed the Renishaw AEs on my AP1100GTO.

I am a newbie, what do I need to do to initialize them and turn them on?

Shailesh


Re: APPM Models

Ray Gralak
 

Hi Kevin,

I ran my first successful model tonight of 30 points.
Obviously I am going to want to try a much larger model, but I
am wondering how long can I use it. I was thinking about a hundred or so.
If I go for 150 or 200 or so, can I use
that model for multiple days? A week?
If you don't change anything, the model will likely work pretty well indefinitely, but some things will hinder the model's accuracy.

First, to properly account for refraction, you should supply APCC with real-time Temperature, Pressure, and Humidity measurements. The MGBoxV2 is one of the devices capable of supplying this information. You can add this device, or any other ASCOM device with an ASCOM Observing Conditions driver, in APCC's Environmental Settings.

Some potential issues include:

1) Non-repeatable pointing. Some telescopes with non-fixed mirrors can introduce random pointing errors.
2) Any settling of the pier into the ground can change polar alignment.
3) Loose or flimsy mounting plates can introduce randomness.
4) An inadequate focuser can introduce extra flexure and/or introduce randomness.
5) Drastic changes to OTA flexure in temperature changes can subtly affect the pointing model.
6) Hanging cables can introduce randomness, especially if one gets caught on something.
7) Any changes to the setup after a model has been created will usually reduce the model's effectiveness.
8) Any inaccuracy in the plate solves will obviously affect accuracy.

Provided that there is not significant pointing randomness nor unmodeled setup characteristics, each hemisphere model's pointing and tracking rate accuracy will improve as the square root of the number of points. Pointing and tracking rate accuracy should not change significantly over time as long as the setup is stable, which means minimally that the following do not change: polar alignment, flexure, telescope setup, and the total weight of all equipment, counterweights, and balance.

That said, it's pretty easy to create a new model. APPM should be able to capture 2-3 points per minute, or 120-180 points per hour.

-Ray Gralak
Author of PEMPro
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of KHursh via groups.io
Sent: Friday, November 27, 2020 6:35 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APPM Models

I ran my first successful model tonight of 30 points. Obviously I am going to want to try a much larger model, but I
am wondering how long can I use it. I was thinking about a hundred or so. If I go for 150 or 200 or so, can I use
that model for multiple days? A week?

Kevin


AP1100 GTO with AE installed today - but newbie question #Absolute_Encoders

Shailesh Trivedi
 

Today I installed the Renishaw AEs on my AP1100GTO.

I am a newbie, what do I need to do to initialize them and turn them on?

Shailesh


Re: APPM Models

KHursh
 

Good tip Brian. I will do a 100 or so point model in the mean-time, before I can do the 'whole hog'


Re: APPM Models

 

It sounds like a good idea... but you will get a handful of fails
around the bright moon

if you are going to go through the effort of building a large model to
keep for a while, my experience suggests you want to use a relatively
moonless night

hth

Brian

On Fri, Nov 27, 2020 at 8:08 PM KHursh via groups.io
<khursh=yahoo.com@groups.io> wrote:

I think I will make good use of the full-ish moon to make a much bigger model.


--
Brian



Brian Valente
portfolio brianvalentephotography.com


Re: APPM Models

KHursh
 

I think I will make good use of the full-ish moon to make a much bigger model.


Re: APPM Models

 

FYI we have a 400 point model and have been using it for months

On Fri, Nov 27, 2020 at 7:18 PM KHursh via groups.io
<khursh=yahoo.com@groups.io> wrote:

Thanks Roland. I won't be moving it.


--
Brian



Brian Valente
portfolio brianvalentephotography.com


Re: APPM Models

KHursh
 

Thanks Roland. I won't be moving it.


Re: APPM Models

Roland Christen
 

If you don't move your mount, you can use it for a long time.

Rolando



-----Original Message-----
From: KHursh via groups.io <khursh@...>
To: main@ap-gto.groups.io
Sent: Fri, Nov 27, 2020 8:34 pm
Subject: [ap-gto] APPM Models

I ran my first successful model tonight of 30 points. Obviously I am going to want to try a much larger model, but I am wondering how long can I use it. I was thinking about a hundred or so. If I go for 150 or 200 or so, can I use that model for multiple days? A week?

Kevin

--
Roland Christen
Astro-Physics


APPM Models

KHursh
 

I ran my first successful model tonight of 30 points. Obviously I am going to want to try a much larger model, but I am wondering how long can I use it. I was thinking about a hundred or so. If I go for 150 or 200 or so, can I use that model for multiple days? A week?

Kevin


Re: 140/155 4” Field Flatteners

JT
 

Hi Rolando,

Does the Quad TCC require the same back distance to focal plane in AP 155 f/7 as in 130 f/6.3 GTX/GT.

Thanks,
JT

On Nov 27, 2020, at 20:53, dvjbaja <jpgleasonid@...> wrote:


Yep, T-ripper is good to process 1000 mosaic tiles done with 16803.  

-jg

On Fri, Nov 27, 2020 at 5:43 PM Dale Ghent <daleg@...> wrote:


> On Nov 27, 2020, at 19:46, dvjbaja <jpgleasonid@...> wrote:
>
> Yep, the 67 flatteners that came with my 155 f/7 and 180 f/7 create a lovely 100mm image circle with minimum vignetting and great sharpness across the entire circle. 

End-game for me is a 155/7, so this is good to know!

> A large array for that full coverage will be quite expensive, not to mention the cost of narrowband filters.   Smaller arrays work just fine for mosaics at a fraction of the cost.  Just say'n.   Oh and don't forget the PC requirements to handle stacks and stacks of 150 mp files. 

That's why the silicon gods granted us ThreadRipper! TRs help immensely even with the 60mp images of the IMX455 cameras. I'm waiting semi-patiently for AMD to sort out the supply of the new generation of ThreadRipper so I can return to doing things like local normalization and even 2x drizzling in PI and not have to wait half a lifetime for those processes to complete.

/dale




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