Date   

Re: APPM plate solve failure and then APCC stopping working

Ray Gralak
 

Jian,

There were two PNT files in your zip file. The first has only 2 points, but the other has 30 points, and loads fine in APCC.

I slewed around parked, unparked, but I could not get APCC to lockup.

Usually when someone thinks APCC has "locked up" there is actually a message box window behind another window that is waiting for you to click it.

I suggest you turn off the "Keep window on top" options on APCC, the driver, APPM, etc. This will enable those pop-up windows to be seen.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
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 jypeng@gmail.com
Sent: Thursday, June 11, 2020 7:15 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APPM plate solve failure and then APCC stopping working

Hi Ray,
I had successfully run two small-map twice when I unchecked "Precess J2000 to JNow", and consistently
failed (only first two points solved) when it was checked.
It seems to me that this option makes a big difference for my setup. The help file stated
"When plate solving catalogues typically use J2000.0 coordinates. If this option is checked (recommended)
then APPM will precess plat-solved coordinates to JNow(the current epoch). APPC can handle J2000.0 and
JNow coordinates so enabling this option is optional. However, when enabled it might be easier to analyze
pointingndata in a third party program, like Excel."
If my understanding correctly, when this option checked, then APPM sends JNow coordinates to PlateSolve
app. If unchecked, then APPM sends J2000 to the PlateSolve app.
I was able to run twice with the unchecked option.
Anyway, I don't care about running with the checked option and failed to plate solved the points after the third
point.
The most important object is that I don't want APCC pro hanging (which you didn't answer for me yet) when I
enable the point model with the data corrected from APPM with the unchecked option. The APCC application
stops working when I enable the Pointing/Tracking Correction. I can't close the APCC Pro window at all.

The summary: (Please comment)
1. Users can run APPM with uncheck "Precess J2000 to JNow" option to generate the pointing model for
APCC. Pro. Right?
2. APCC Pro should be run without any issues with the model generated with unchecking "Precess J2000 to
JNow" option when enabling Tracking/Pointing Correction. Right?
If the abovementioned two statements are accurate, Could you please help me to find out why APCC Pro app
is hanging on my system when I enable the pointing model?
So, we don't spend time on plate solving. I have a model loaded in the point model and I want to use it.
Let me know whether I need to upload more log files for you.
Thanks,
Jian Yuan Peng



On/ Thu, Jun 11, 2020 at 06:00 PM, Ray Gralak wrote:


Did you find out why APPM could plate solve all of the points when I unchecked "Precess J2000
to JNow"?

I forgot to answer this. Probably what happened is that you finally got a good plate solve, thus the
others solved.

The previous solves failed because of one bad solve which skewed the coordinates. That was not
APPM's fault. APPM only reports what the plate solve reports back to it.


Re: APPM plate solve failure and then APCC stopping working

Ray Gralak
 

Jiang,

Can you attach the PNT file that hangs APCC to a message here? It should be easy to figure out if I have that file.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
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 jypeng@gmail.com
Sent: Thursday, June 11, 2020 7:15 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APPM plate solve failure and then APCC stopping working

Hi Ray,
I had successfully run two small-map twice when I unchecked "Precess J2000 to JNow", and consistently
failed (only first two points solved) when it was checked.
It seems to me that this option makes a big difference for my setup. The help file stated
"When plate solving catalogues typically use J2000.0 coordinates. If this option is checked (recommended)
then APPM will precess plat-solved coordinates to JNow(the current epoch). APPC can handle J2000.0 and
JNow coordinates so enabling this option is optional. However, when enabled it might be easier to analyze
pointingndata in a third party program, like Excel."
If my understanding correctly, when this option checked, then APPM sends JNow coordinates to PlateSolve
app. If unchecked, then APPM sends J2000 to the PlateSolve app.
I was able to run twice with the unchecked option.
Anyway, I don't care about running with the checked option and failed to plate solved the points after the third
point.
The most important object is that I don't want APCC pro hanging (which you didn't answer for me yet) when I
enable the point model with the data corrected from APPM with the unchecked option. The APCC application
stops working when I enable the Pointing/Tracking Correction. I can't close the APCC Pro window at all.

The summary: (Please comment)
1. Users can run APPM with uncheck "Precess J2000 to JNow" option to generate the pointing model for
APCC. Pro. Right?
2. APCC Pro should be run without any issues with the model generated with unchecking "Precess J2000 to
JNow" option when enabling Tracking/Pointing Correction. Right?
If the abovementioned two statements are accurate, Could you please help me to find out why APCC Pro app
is hanging on my system when I enable the pointing model?
So, we don't spend time on plate solving. I have a model loaded in the point model and I want to use it.
Let me know whether I need to upload more log files for you.
Thanks,
Jian Yuan Peng



On/ Thu, Jun 11, 2020 at 06:00 PM, Ray Gralak wrote:


Did you find out why APPM could plate solve all of the points when I unchecked "Precess J2000
to JNow"?

I forgot to answer this. Probably what happened is that you finally got a good plate solve, thus the
others solved.

The previous solves failed because of one bad solve which skewed the coordinates. That was not
APPM's fault. APPM only reports what the plate solve reports back to it.


Re: APPM plate solve failure and then APCC stopping working

Dean Jacobsen
 


Re: APPM plate solve failure and then APCC stopping working

Ray Gralak
 

Jiang,

Since I posted last have you followed any on my settings?

If my understanding correctly, when this option checked, then APPM sends JNow coordinates to PlateSolve
app. If unchecked, then APPM sends J2000 to the PlateSolve app.
Incorrect. The setting simply shows what plate solve coordinates will be stored in the PNT file. Here's what the help says:

Precess J2000 to JNow: When checked the plate-solved coordinates are converted to JNow when stored in the log file, which might be useful for debugging purposes.

The most important object is that I don't want APCC pro hanging (which you didn't answer for me yet) when I
enable the point model with the data corrected from APPM with the unchecked option. The APCC application
stops working when I enable the Pointing/Tracking Correction. I can't close the APCC Pro window at all.
I don't know why that would happen. I will look into it but I don't have an answer for you now.

But you really want that option enabled for highest accuracy. The historical calculation of precession may not be as accurate as saving the precessed J2000 coordinates that returned are from the plate solves.

I have used wider field (Traveler 105mm/F6 and 130GTX) refractors as well as longer focal length (180EDT F9) refractors on my 1100AE and 1200 mounts. I don't have the plate solve problems you had. However, I think if you follow the settings guidelines I suggested I think you won't have problems.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
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 jypeng@gmail.com
Sent: Thursday, June 11, 2020 7:15 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APPM plate solve failure and then APCC stopping working

Hi Ray,
I had successfully run two small-map twice when I unchecked "Precess J2000 to JNow", and consistently
failed (only first two points solved) when it was checked.
It seems to me that this option makes a big difference for my setup. The help file stated
"When plate solving catalogues typically use J2000.0 coordinates. If this option is checked (recommended)
then APPM will precess plat-solved coordinates to JNow(the current epoch). APPC can handle J2000.0 and
JNow coordinates so enabling this option is optional. However, when enabled it might be easier to analyze
pointingndata in a third party program, like Excel."
If my understanding correctly, when this option checked, then APPM sends JNow coordinates to PlateSolve
app. If unchecked, then APPM sends J2000 to the PlateSolve app.
I was able to run twice with the unchecked option.
Anyway, I don't care about running with the checked option and failed to plate solved the points after the third
point.
The most important object is that I don't want APCC pro hanging (which you didn't answer for me yet) when I
enable the point model with the data corrected from APPM with the unchecked option. The APCC application
stops working when I enable the Pointing/Tracking Correction. I can't close the APCC Pro window at all.

The summary: (Please comment)
1. Users can run APPM with uncheck "Precess J2000 to JNow" option to generate the pointing model for
APCC. Pro. Right?
2. APCC Pro should be run without any issues with the model generated with unchecking "Precess J2000 to
JNow" option when enabling Tracking/Pointing Correction. Right?
If the abovementioned two statements are accurate, Could you please help me to find out why APCC Pro app
is hanging on my system when I enable the pointing model?
So, we don't spend time on plate solving. I have a model loaded in the point model and I want to use it.
Let me know whether I need to upload more log files for you.
Thanks,
Jian Yuan Peng



On/ Thu, Jun 11, 2020 at 06:00 PM, Ray Gralak wrote:


Did you find out why APPM could plate solve all of the points when I unchecked "Precess J2000
to JNow"?

I forgot to answer this. Probably what happened is that you finally got a good plate solve, thus the
others solved.

The previous solves failed because of one bad solve which skewed the coordinates. That was not
APPM's fault. APPM only reports what the plate solve reports back to it.


Re: APPM plate solve failure and then APCC stopping working

jypeng@...
 

Hi Ray,
I had successfully run two small-map twice when I unchecked  "Precess J2000 to JNow", and consistently failed (only first two points solved) when it was checked.
It seems to me that this option makes a big difference for my setup. The help file stated 
"When plate solving catalogues typically use J2000.0 coordinates. If this option is checked (recommended) then APPM will precess plat-solved coordinates to JNow(the current epoch). APPC can handle J2000.0 and JNow coordinates so enabling this option is optional. However, when enabled it might be easier to analyze pointingndata in a third party program, like Excel."
If my understanding correctly, when this option checked, then APPM sends JNow coordinates to PlateSolve app. If unchecked, then APPM sends J2000 to the PlateSolve app.
I was able to run twice with the unchecked option.
Anyway, I don't care about running with the checked option and failed to plate solved the points after the third point.
The most important object is that I don't want APCC pro hanging (which you didn't answer for me yet) when I enable the point model with the data corrected from APPM with the unchecked option. The APCC application stops working when I enable the Pointing/Tracking Correction. I can't close the APCC Pro window at all.

The summary: (Please comment)
1. Users can run APPM with uncheck "Precess J2000 to JNow" option to generate the pointing model for APCC. Pro. Right?
2. APCC Pro should be run without any issues with the model generated with unchecking "Precess J2000 to JNow" option when enabling Tracking/Pointing Correction. Right?
If the abovementioned two statements are accurate, Could you please help me to find out why APCC Pro app is hanging on my system when I enable the pointing model?
So, we don't spend time on plate solving. I have a model loaded in the point model and I want to use it.
Let me know whether I need to upload more log files for you.
Thanks,
Jian Yuan Peng



On/ Thu, Jun 11, 2020 at 06:00 PM, Ray Gralak wrote:

Did you find out why APPM could plate solve all of the points when I unchecked "Precess J2000 to JNow"?
I forgot to answer this. Probably what happened is that you finally got a good plate solve, thus the others solved.

The previous solves failed because of one bad solve which skewed the coordinates. That was not APPM's fault. APPM only reports what the plate solve reports back to it.


Re: Mach1 Grease kit were? is it hiding on the site?

Roland Christen
 

Hi Ron,

A. Call the office for a grease kit. It is not on the website.

B. Your Mach1 has the latest gearbox, which is not the instructions that are posted on our website for gearbox removal. below are some pictures to help you remove the gearbox.
1 - back the worm off via the lever on the side of the gearbox. Make sure you have the scope in park3 so it does not swing wild when you back the worm off.
2 - remove the 4 screws holding the back cover on
3 - down inside the gearbox under the two holes as shown, there are 2 Allen Head screws. They are captive. You loosen them completely and then you can lift the gearbox off the mount.
4 - the worm can then be cleaned. You can even plug it back into your CP3 and turn it at slewing speeds with the E-W buttons.








Re: APPM plate solve failure and then APCC stopping working

Ray Gralak
 

Did you find out why APPM could plate solve all of the points when I unchecked "Precess J2000 to JNow"?
I forgot to answer this. Probably what happened is that you finally got a good plate solve, thus the others solved.

The previous solves failed because of one bad solve which skewed the coordinates. That was not APPM's fault. APPM only reports what the plate solve reports back to it.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
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 Ray Gralak
Sent: Thursday, June 11, 2020 5:30 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APPM plate solve failure and then APCC stopping working

Jian,

Polar Alignment is very good done with SharpCap and PHD2 Drift alignment. I used AP ASCOM driver for
Okay, make sure you follow the setup directions in APCC's help file. SGPro has two different sets of plate
solve parameters. One for internal SGPro use, and one for external applications. If you didn't set up for
external plate solving then you are probably just getting bad solves as demonstrated with an error of 825 arc-
minutes..

The plate solve on SGPro is OK, but failed at APPM.
Which means you probably setup external plate solving.

Please also follow the suggestions I gave on your next try. :-)

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
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 jypeng@gmail.com
Sent: Thursday, June 11, 2020 5:07 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APPM plate solve failure and then APCC stopping working

Hi Ray,
Polar Alignment is very good done with SharpCap and PHD2 Drift alignment. I used AP ASCOM driver for
imaging before I went to sleep in the past 2 nights and got PHD2 RMS total about 0.5 or less. The pointing
with AP ASCOM driver only is dead on every time which target was always on the chip.
My telescope is TEC 160FL with 0.9 FRC. See my APPM setting in the attached image,
Did you find out why APPM could plate solve all of the points when I unchecked "Precess J2000 to JNow"?
Can you see the image 1 in my previous message? The plate solve on SGPro is OK, but failed at APPM.
It seems to me that the fourth point in the attached image 1, The coordinates between Run windows,
PlateSolve 2.29, and SGPro Plate Solve were not matched at all (don't make sense for me). For example, I
saw the fourth point plate solve failed, then I stopped the APPM run, and went to SGPro and right-click the
image to plate solve. The RA/DEC Hints were matched on Run table, but not on the PlateSolve 2.29's
Staring
RA/Dec.
Any idea?
Thanks,
Jian Yuan Peng


Re: APPM plate solve failure and then APCC stopping working

Ray Gralak
 

Jian,

Polar Alignment is very good done with SharpCap and PHD2 Drift alignment. I used AP ASCOM driver for
Okay, make sure you follow the setup directions in APCC's help file. SGPro has two different sets of plate solve parameters. One for internal SGPro use, and one for external applications. If you didn't set up for external plate solving then you are probably just getting bad solves as demonstrated with an error of 825 arc-minutes..

The plate solve on SGPro is OK, but failed at APPM.
Which means you probably setup external plate solving.

Please also follow the suggestions I gave on your next try. :-)

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
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 jypeng@gmail.com
Sent: Thursday, June 11, 2020 5:07 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APPM plate solve failure and then APCC stopping working

Hi Ray,
Polar Alignment is very good done with SharpCap and PHD2 Drift alignment. I used AP ASCOM driver for
imaging before I went to sleep in the past 2 nights and got PHD2 RMS total about 0.5 or less. The pointing
with AP ASCOM driver only is dead on every time which target was always on the chip.
My telescope is TEC 160FL with 0.9 FRC. See my APPM setting in the attached image,
Did you find out why APPM could plate solve all of the points when I unchecked "Precess J2000 to JNow"?
Can you see the image 1 in my previous message? The plate solve on SGPro is OK, but failed at APPM.
It seems to me that the fourth point in the attached image 1, The coordinates between Run windows,
PlateSolve 2.29, and SGPro Plate Solve were not matched at all (don't make sense for me). For example, I
saw the fourth point plate solve failed, then I stopped the APPM run, and went to SGPro and right-click the
image to plate solve. The RA/DEC Hints were matched on Run table, but not on the PlateSolve 2.29's Staring
RA/Dec.
Any idea?
Thanks,
Jian Yuan Peng


Re: Mach1 Grease kit were? is it hiding on the site?

Steven Panish
 

AP says they want to verify that you (and your mount) are in their user database before they sell the grease kit.  Cost is $42.50, call or email them to order.  Instructions are included, plus you will need to download the gear mesh instructions or whatever is equivalent for your mount.  The kit includes a brush for application and two kinds of grease, for the worm and spur gears.

Steve

On Thu, Jun 11, 2020 at 8:01 PM Charles Thompson via groups.io <cthomp97=yahoo.com@groups.io> wrote:
Call Astro Physics to order the grease kit. 





Thanks,
Charles

Sent from mobile device.


-------- Original message --------
From: Ron Kramer <ronkramer1957@...>
Date: 6/11/20 6:44 PM (GMT-06:00)
Subject: [ap-gto] Mach1 Grease kit were? is it hiding on the site?


A link to order one?  info price? it includes instructions?
SEARCH did not reveal anything under grease?  But displayed a LOT OF NON GREASE items?

How do I remove the RA gearbox? manual shows 2 screws on teh back of the box. Mine (spring loaded) does not have those two lock down screws?

Is there an updated manual out for the newer spring mesh units? 

I'd like to inspect the worm for a nick or dirt in the mesh. 


--


Re: APPM plate solve failure and then APCC stopping working

jypeng@...
 

Hi Ray,
Polar Alignment is very good done with SharpCap and PHD2 Drift alignment. I used AP ASCOM driver for imaging before I went to sleep in the past 2 nights and got PHD2 RMS total about  0.5 or less. The pointing with AP ASCOM driver only is dead on every time which target was always on the chip.
My telescope is TEC 160FL with 0.9 FRC. See my APPM setting in the attached image,
Did you find out why APPM could plate solve all of the points when I unchecked "Precess J2000 to JNow"? 
Can you see the image 1 in my previous message? The plate solve on SGPro is OK, but failed at APPM.
It seems to me that the fourth point in the attached image 1, The coordinates between Run windows, PlateSolve 2.29, and SGPro Plate Solve were not matched at all (don't make sense for me).  For example, I saw the fourth point plate solve failed, then I stopped the APPM run, and went to SGPro and right-click the image to plate solve. The RA/DEC Hints were matched on Run table, but not on the PlateSolve 2.29's Staring RA/Dec. 
Any idea?
Thanks,
Jian Yuan Peng


Re: Mach1 Grease kit were? is it hiding on the site?

Charles Thompson
 

Call Astro Physics to order the grease kit. 





Thanks,
Charles

Sent from mobile device.


-------- Original message --------
From: Ron Kramer <ronkramer1957@...>
Date: 6/11/20 6:44 PM (GMT-06:00)
To: main@ap-gto.groups.io
Subject: [ap-gto] Mach1 Grease kit were? is it hiding on the site?


A link to order one?  info price? it includes instructions?
SEARCH did not reveal anything under grease?  But displayed a LOT OF NON GREASE items?

How do I remove the RA gearbox? manual shows 2 screws on teh back of the box. Mine (spring loaded) does not have those two lock down screws?

Is there an updated manual out for the newer spring mesh units? 

I'd like to inspect the worm for a nick or dirt in the mesh. 


--


Mach1 Grease kit were? is it hiding on the site?

Ron Kramer
 


A link to order one?  info price? it includes instructions?
SEARCH did not reveal anything under grease?  But displayed a LOT OF NON GREASE items?

How do I remove the RA gearbox? manual shows 2 screws on teh back of the box. Mine (spring loaded) does not have those two lock down screws?

Is there an updated manual out for the newer spring mesh units? 

I'd like to inspect the worm for a nick or dirt in the mesh. 


--


How to remove MACH1 (spring loaded) gearbox. Instructions show two lock down screws on the back of the box. My 2.5 year old mach1 does not have those 2 screws.How do I remove it to inspect the worm?

Ron Kramer
 


Re: APPM plate solve failure and then APCC stopping working

Ray Gralak
 

Wow… the first solve was off by 825 arc-minutes?

 

That doesn’t look good at all. Are you sure you are polar aligned?

 

What type of telescope are you using?

 

-Ray

 

-Ray Gralak

Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro

Author of PEMPro V3:  https://www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of jypeng@...
Sent: Thursday, June 11, 2020 3:52 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APPM plate solve failure and then APCC stopping working

 

Hi Ray,
I had tried to run APPM twice on June 8 and 10 with a clear sky. I got the same problems in the following steps.
1. Started APPM after Horizon and Meridian setup, and camera used SGPro, and selected Small Map Default.
2. APPM was able to solve the first two points and then always failed after the third point. See attached image 1.
3. So, I stopped the APPM at the fourth point and went to SGPro to plate solve the image. See attached image 2.
   It seemed SGPro's image was pointing in the right direction.
4. Since APPM consistently failed to plate solve after the first two points, so I unchecked "Precess J2000 to JNow" and run again.
  See image 3. Then APPM completes run without any failure.
5. However, If I enable Tracking/Pointing Correction in the Pointing Model, then the APCC application stops working.
    The mount slew to park 3 after a timeout when APCC is no response anymore.
    if I don't enable the pointing model, and APCC pro works fine,
Could you help me to identify my problems? I guess that I should not uncheck Precess J2000 to JNow.
I uploaded the June 10 log file to the following link
https://drive.google.com/file/d/1jqUeF9JpVqpVgZs8KXwylCGfWDFM_p2O/view 

Thanks,
Jian Yuan Peng


Re: APPM plate solve failure and then APCC stopping working

Ray Gralak
 

Hi Jian

 

Failed plate solves are a problem with the settings you are using, not APPM. APPM just instantiates the selected plate solver.

 

Some ways to handle plate solving problems:

 

·         Take the time to more accurately polar align your mount to within a couple arc-minutes of the pole.

·         Use full-frame images unbinned images (if you are not already)

·         Increase the Max Solve Time

·         Enable the “Try All-Sky plate solving if available” option.

·         Increase the image scale tolerance if you don’t know your image scale accurately.

·         Set the option to update image scale from next plate solve.

·         And very importantly, enable the “Use last plate solve’s offset as hint for next plate solve”.

 

Here’s a screenshot of how you might setup some of those settings in APPM:

 

 

-Ray Gralak

Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro

Author of PEMPro V3:  https://www.ccdware.com

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 jypeng@...

> Sent: Thursday, June 11, 2020 3:52 PM

> To: main@ap-gto.groups.io

> Subject: [ap-gto] APPM plate solve failure and then APCC stopping working

>

> Hi Ray,

> I had tried to run APPM twice on June 8 and 10 with a clear sky. I got the same problems in the following steps.

> 1. Started APPM after Horizon and Meridian setup, and camera used SGPro, and selected Small Map Default.

> 2. APPM was able to solve the first two points and then always failed after the third point. See attached image 1.

> 3. So, I stopped the APPM at the fourth point and went to SGPro to plate solve the image. See attached image 2.

>    It seemed SGPro's image was pointing in the right direction.

> 4. Since APPM consistently failed to plate solve after the first two points, so I unchecked "Precess J2000 to JNow"

> and run again.

>   See image 3. Then APPM completes run without any failure.

> 5. However, If I enable Tracking/Pointing Correction in the Pointing Model, then the APCC application stops working.

>     The mount slew to park 3 after a timeout when APCC is no response anymore.

>     if I don't enable the pointing model, and APCC pro works fine,

> Could you help me to identify my problems? I guess that I should not uncheck Precess J2000 to JNow.

> I uploaded the June 10 log file to the following link

> https://drive.google.com/file/d/1jqUeF9JpVqpVgZs8KXwylCGfWDFM_p2O/view

>

> Thanks,

> Jian Yuan Peng

>


APPM plate solve failure and then APCC stopping working

jypeng@...
 

Hi Ray,
I had tried to run APPM twice on June 8 and 10 with a clear sky. I got the same problems in the following steps.
1. Started APPM after Horizon and Meridian setup, and camera used SGPro, and selected Small Map Default.
2. APPM was able to solve the first two points and then always failed after the third point. See attached image 1.
3. So, I stopped the APPM at the fourth point and went to SGPro to plate solve the image. See attached image 2.
   It seemed SGPro's image was pointing in the right direction.
4. Since APPM consistently failed to plate solve after the first two points, so I unchecked "Precess J2000 to JNow" and run again.
  See image 3. Then APPM completes run without any failure.
5. However, If I enable Tracking/Pointing Correction in the Pointing Model, then the APCC application stops working.
    The mount slew to park 3 after a timeout when APCC is no response anymore.
    if I don't enable the pointing model, and APCC pro works fine,
Could you help me to identify my problems? I guess that I should not uncheck Precess J2000 to JNow.
I uploaded the June 10 log file to the following link
https://drive.google.com/file/d/1jqUeF9JpVqpVgZs8KXwylCGfWDFM_p2O/view 

Thanks,
Jian Yuan Peng


Re: PEM Curve From Keypad Versus PEM Pro

Roland Christen
 

The PE curve that is in the CP is generated using multiple cycles with PEMPro. As the mount teeth wear in during multiple slews over many days and weeks of operation, the PE curve may change significantly from the original factory measurements.

PEMPro averages multiple cycles to get a smooth PE curve that is devoid of fast moving disturbances that occur on a real star under less than perfect seeing conditions (i.e. the star is moving around a lot due to atmospheric disturbance).

The PE curve that is generated using the keypad simply records one worm cycle into the same memory in the CP controller. It is not something stored in the keypad. The action is the same as PEMPro where nothing is stored on the computer, but the keypad stores only one cycle and does not average multiple cycles.
based on experience, the keypad PE correction can reduce the error by a factor of 4 to 5, and the multiple averaged PEMPro can probably reduce it by a factor of 8 or better.

Rolando



-----Original Message-----
From: M Hambrick <mhambrick563@...>
To: main@ap-gto.groups.io
Sent: Thu, Jun 11, 2020 3:12 pm
Subject: [ap-gto] PEM Curve From Keypad Versus PEM Pro

I have some novice questions about the PEM curves for A-P mounts:

Is there a difference between the PEM curve that can be generated from the Keypad versus the curves that are generated by using PEM Pro ? The description in the Keypad manual describes a fixed 7 minute recording cycle for the 1100 Mount (one revolution of the worm). The description of PEM-Pro in the GTO-CP4 manual implies that the PEM curve can be created using more than one revolution of the worm.

The CP4 manual also mentions the PEM curve that is loaded into the CP4 before they are shipped to the customers. Is this curve created using PEM-Pro with multiple worm cycles, or is it generated using the Keypad function using just one cycle ? Do I have to enable (run) this pre-loaded curve from the Keypad, or is it always running in the background ?


PEM Curve From Keypad Versus PEM Pro

M Hambrick
 

I have some novice questions about the PEM curves for A-P mounts:

Is there a difference between the PEM curve that can be generated from the Keypad versus the curves that are generated by using PEM Pro ? The description in the Keypad manual describes a fixed 7 minute recording cycle for the 1100 Mount (one revolution of the worm). The description of PEM-Pro in the GTO-CP4 manual implies that the PEM curve can be created using more than one revolution of the worm.

The CP4 manual also mentions the PEM curve that is loaded into the CP4 before they are shipped to the customers. Is this curve created using PEM-Pro with multiple worm cycles, or is it generated using the Keypad function using just one cycle ? Do I have to enable (run) this pre-loaded curve from the Keypad, or is it always running in the background ?


Re: Automating Meridian Flips with APCC Pro and with Sequence Generator #APCC

Dean Jacobsen
 

On Thu, Jun 11, 2020 at 11:00 AM, Ray Gralak wrote:

APCC, however, knows how to send the meridian limit to SGPro.

 

BTW, some of the controls have Tooltips that will pop up information when you hover over the control, like this:

 

 

Aha!  I should have seen that!  I have the screen up and I had already checked the box, so I had probably already seen the tool tip at some point.

...information overload on this end...

So, thanks for that Ray.

It looks like everything will work as I had hoped.
 
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Automating Meridian Flips with APCC Pro and with Sequence Generator #APCC

Ray Gralak
 

Hi Dean,

 

> I can't find any information on this in the documentation.

 

HINT: click the little "?" button in the upper right corner of most group boxes to get context-sensitive help. Here is a screen shot of one portion of the meridian limits

 

 

So, SGPro does not read anything from APCC. It doesn't and shouldn't know anything about APCC.

 

APCC, however, knows how to send the meridian limit to SGPro.

 

BTW, some of the controls have Tooltips that will pop up information when you hover over the control, like this:

 

 

-Ray Gralak

Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro

Author of PEMPro V3:  https://www.ccdware.com

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 Dean Jacobsen

> Sent: Thursday, June 11, 2020 10:45 AM

> To: main@ap-gto.groups.io

> Subject: [ap-gto] Automating Meridian Flips with APCC Pro and with Sequence Generator #APCC

>

> I am researching setting up automated meridian flips with Sequence Generator.

>

> I have set up a one hour [15 degree] meridian delay in in APCC for point mapping and then for imaging past the

> meridian.

>

> What I am wondering is whether the information concerning my APCC defined meridian delay is accessible to SGP

> and is is used by SGP in calculating the modified meridian position?

>

> I can't find any information on this in the documentation.

> --

> Dean Jacobsen

> http://astrophoto.net/wp/  <http://astrophoto.net/wp/>

> Image Gallery - http://astrophoto.net/wp/image-gallery/

> Astrobin - https://www.astrobin.com/users/deanjacobsen/  <https://www.astrobin.com/users/deanjacobsen/>

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