Date   

Re: ISS Tracking with APCC & Horizons plus using handbox buttons ??

Ray Gralak
 

During the tracking I tried to use the hand-paddle buttons to superimpose correction onto
the tracking trying to
keep the ISS in the camera view screen. It somehow worked a bit but I had the feeling that the tracking was
'fighting' me back. Once I pushed a button to move the ISS to the center 'something' pushed it back by a bit
moments later. I got some success by over-compensating and ISS got then back (closer) to center. At one point in
this effort however it got lost outside the view finder screen and never came back.
Horizons continuously slews to new RA/Dec coordinates, so the A-P mount hand controller moves probably won't have much of an effect. The drift could be from changes in the orbit of ISS. In a future version of Horizons, I'll try to work in a way to detect relative moves and add them in.

-Ray



-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of drgert1 via groups.io
Sent: Wednesday, March 17, 2021 8:21 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] ISS Tracking with APCC & Horizons plus using handbox buttons ??

Hello All,

Alas, a recent ISS passage and the ISS tracking questions pour in. :-)

I guess this is for Ray. Tracking ISS yesterday with APCC / Horizons / AP1200 worked reasonably well.
Video from the AP130 with 2x barlow and Canon T3i
http://skywatcher.space/download/iss_20210316.mp4

During the tracking I tried to use the hand-paddle buttons to superimpose correction onto the tracking trying to
keep the ISS in the camera view screen. It somehow worked a bit but I had the feeling that the tracking was
'fighting' me back. Once I pushed a button to move the ISS to the center 'something' pushed it back by a bit
moments later. I got some success by over-compensating and ISS got then back (closer) to center. At one point in
this effort however it got lost outside the view finder screen and never came back.

Question:


* What is happening there?
* Is it a correct expectation to operate the hand paddle buttons independent from the APCC tracking? (My
thinking is that the APCC uses custom tracking rate which is something different from what the buttons do). Is that
assumption correct?
* Really cool would be to have a USB access to a PC 'gaming' joystick and use that to move the mount. Any
ideas in the AP mount driver to support that?


As always great shout-out to Ray for the excellent work he does!

Cheers,
Gert


Re: Tracking ISS with Horizons #APCC #Mach2GTO

Ray Gralak
 

Now, look at the second image. The values in arc-sec/hr are roughly the same,
but the values in arc-sec/sec are
more than an order of magnitude different. Am I missing something here?
It could be a typo in the units. Remember that one RA sec/sec is 15 arc-sec/sec. I'll fix that in the next build, but it should not affect the tracking.

-Ray

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of David Johnson
Sent: Wednesday, March 17, 2021 6:48 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Tracking ISS with Horizons #APCC #Mach2GTO

Okay, I’ve been playing around with this, both using the Test Tracking and in real-time, albeit in my basement due
to the clouds, and I am learning how this works, but I do have one relatively simple question.

Tonight I did a run in real-time and also using Test Tracking. The numbers in Test Tracking puzzle me.. The first
image shows the screen during the real-time run. Note the values for RA and Dec rates, in arc-sec/sec and arc-
sec/hour. Both rates show as roughly comparable for both units (arc-sec/sec and arc-sec/hr).



Now, look at the second image. The values in arc-sec/hr are roughly the same, but the values in arc-sec/sec are
more than an order of magnitude different. Am I missing something here?



Thanks.


Re: Celestial Fireworks

Ron Kramer
 

REALLY NICE ROLAND
I had APOD contact me out of the blue asking if they could post this image.  I forgot to reply until I read this,

https://www.astrobin.com/full/bzte5l/0/


On Tue, Feb 23, 2021 at 12:14 PM Peter Nagy <topboxman@...> wrote:
Submit to APOD!!!!

Peter 




Re: Pier for 1100GTO #Guiding

M Hambrick
 

I use my 1992 vintage A-P portable 8-inch pier with my 1100GTO mount. It is rock solid, even with a 180 EDT scope, 16 megapixel camera, and piggybacked guide scope attached. I set up and take down my gear including the pier every time I get it out.

I didn't anchor my pier in concrete, but I did pour 8-inch diameter concrete pads about 2 ft deep into the ground to give the pier legs a solid base to sit on. if I had a permanent observatory I would try to figure out a way to lock the legs into position so as not to disturb the polar alignment.

The biggest challenge I had with my old A-P pier was getting the 1100 mount base firmly attached to it. The top of the original pier was not perfectly flat, so I had to hand scrape the high spots so that the mount base made even contact with the top of the pier. The old piers only have three holes for attaching the mount base. I drilled three additional holes in it so that I could attach the mount to the pier using all six screws. Finally, I use NORD-LOCK lock washers on the screws that attach the mount base to the pier to prevent the base from shifting in the pier when everything is attached.

I hope this information is useful.

Mike


Re: Tracking ISS with Horizons #APCC #Mach2GTO

David Johnson
 

Just to be clear, the first image was during real-time using the regular tracking, the second was using Test Tracking.


Re: Help Parking AP 900 in TheSky #ASCOM_V2_Driver

Bob Gillette
 

Ray,

Until this morning when I installed the new AP driver, TheSky included setting tracking rates and parking in positions 1, 2, or 3 in its Telescope/Options menu.  To my surprise, these options disappeared after installing the new AP driver.  All I see there now, as Don notes below, are Focus Control and Slew, for which I have no need.

I did call up the driver window, set Park 1 down in the lower left corner and clicked OK. Nothing happened.

Had to go outside and use the handset to park the scope.

Don, thanks for your comments. Happy to use Park 4 if something will activated it.

Bob


Re: Pier for 1100GTO #Guiding

Don Anderson
 

Probably could be made to work but is it worth the effort? 

Don Anderson


On Wednesday, March 17, 2021, 09:56:17 p.m. MDT, <dbrannan0523@...> wrote:


I have an 1100GTO mount on order and plan to house it in an observatory on permanent pier with imaging in mind.   I own an old AP 8" diameter portable pier.  Would anchoring this in concrete and filling the tube with sand be sufficiently stable or is there clear benefit in purchasing a heavier thicker permanent pier for best performance.  Any thoughts?


Re: Pier for 1100GTO #Guiding

weems@...
 

My understanding is that the diameter is more significant than the thickness of the tube. Why not just pour a 12” diameter concrete pier with a Dan’s pier plate and AP adapter? That would be stiffer than an 8” tube, and less expensive than a whole new metal pier. 

Chip 


Pier for 1100GTO #Guiding

dbrannan0523@...
 

I have an 1100GTO mount on order and plan to house it in an observatory on permanent pier with imaging in mind.   I own an old AP 8" diameter portable pier.  Would anchoring this in concrete and filling the tube with sand be sufficiently stable or is there clear benefit in purchasing a heavier thicker permanent pier for best performance.  Any thoughts?


ISS Tracking with APCC & Horizons plus using handbox buttons ??

drgert1
 

Hello All,

Alas, a recent ISS passage and the ISS tracking questions pour in. :-)

I guess this is for Ray.  Tracking ISS yesterday with APCC / Horizons / AP1200 worked reasonably well.
Video from the AP130 with 2x barlow and Canon T3i
http://skywatcher.space/download/iss_20210316.mp4

During the tracking I tried to use the hand-paddle buttons to superimpose correction onto the tracking trying to keep the ISS in the camera view screen. It somehow worked a bit but I had the feeling that the tracking was 'fighting' me back. Once I pushed a button to move the ISS to the center 'something' pushed it back by a bit moments later. I got some success by over-compensating and ISS got then back (closer) to center. At one point in this effort however it got lost outside the view  finder screen and never came back.

Question:
  • What is happening there?
  • Is it a correct expectation to operate the hand paddle buttons independent from the APCC tracking? (My thinking is that the APCC uses custom tracking rate which is something different from what the buttons do). Is that assumption correct?
  • Really cool would be to have a USB access to a PC 'gaming' joystick and use that to move the mount. Any ideas in the AP mount driver to support that?

As always great shout-out to Ray for the excellent work he does!

Cheers,
Gert


Re: Tracking ISS with Horizons #APCC #Mach2GTO

Brent Boshart
 

It appears the first screen displays RA rate in arcsec/sec but the second screen displays the RA rate in sec/sec?  Since there is 15 degrees in 1 hr RA to convert sec/sec to arcsec/ hr would be 11.06992 x 15 x 60 x 60 = 597775.   I cannot explain why it does that but that is what appears to be happening?


Re: Tracking ISS with Horizons #APCC #Mach2GTO

David Johnson
 

Okay, I’ve been playing around with this, both using the Test Tracking and in real-time, albeit in my basement due to the clouds, and I am learning how this works, but I do have one relatively simple question.  

Tonight I did a run in real-time and also using Test Tracking.  The numbers in Test Tracking puzzle me..  The first image shows the screen during the real-time run.  Note the values for RA and Dec rates, in arc-sec/sec and arc-sec/hour.  Both rates show as roughly comparable for both units (arc-sec/sec and arc-sec/hr).



Now, look at the second image.  The values in arc-sec/hr are roughly the same, but the values in arc-sec/sec are more than an order of magnitude different.  Am I missing something here?



Thanks.


Re: Help Parking AP 900 in TheSky #ASCOM_V2_Driver

Ray Gralak
 

Hi Bob,

Unfortunately, Sky6 has very little support for ASCOM, and it may not support the ASCOM Park operation. However, you can park the mount from the AP V2 ASCOM driver.

-Ray

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Bob Gillette via groups.io
Sent: Wednesday, March 17, 2021 2:20 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Help Parking AP 900 in TheSky #ASCOM_V2_Driver #ASCOM_V2_Driver

I run my AP900/CP3 setup from MaxIM DL 5.24 and TheSky6 (yes, I know.) All worked fine until I decided to
download the current AP driver 5.3010 and the current ASCOM plugin for TheSky5/6, V5.0.04.

MaxIM does now talk to TheSky and everybody talks to the mount. But...in TheSky/Telescope/Options, the menus
to set tracking rates and to park the scope have now disappeared. Yes, I have specified in the AP driver setup
utility that the mount should start and end at Park 1.

But I can no longer find a. command anywhere to actually park the scope. (Or to set tracking rates, which is useful
as I do both DSO and linear/planetary imaging.

How to fix this?

Thanks, Bob Gillette


Re: Help Parking AP 900 in TheSky #ASCOM_V2_Driver

Don Anderson
 

Bob
I have an almost identical setup. Mine is: AP900GOTO CP3, The Sky6 serious astronomer, MaximDL6.11, AP Ascom driver ver 5.30.1. I haven't updated the Sky Ascom plug in for a couple of years but I don't believe it has changed for several years. You mention that in The Sky/Telescope/Options there is no longer a menu to set tracking rates and park options. I have never seen those options in The Sky. All I get for choices is "focus control and slew" .I use the AP Ascom driver to set the park position and tracking rate.

With regard to using Park1, AP discourages it's use because if your computer or hand controller clock is off by only a few seconds, a park1 command can send the scope diving under the pier. I personally have not had a problem with that since I keep the CP3 clock, computer clock and hand controller clock in sync. Park 4 is pretty much the same and is safer to use. I use Park 3 pretty much all the time now.
As I said above, you can do all your park options and tracking rate setting through the AP driver.
Hope this helps

Don Anderson


On Wednesday, March 17, 2021, 03:20:38 p.m. MDT, Bob Gillette via groups.io <tekic545@...> wrote:


I run my AP900/CP3 setup from MaxIM DL 5.24 and TheSky6 (yes, I know.) All worked fine until I decided to download the  current AP driver 5.3010 and the current ASCOM plugin for TheSky5/6, V5.0.04.

MaxIM does now talk to TheSky and everybody talks to the mount. But...in TheSky/Telescope/Options, the menus to set tracking rates and to park the scope have now disappeared.  Yes, I have specified in the AP driver setup utility that the mount should start and end at Park 1.

But I can no longer find a. command anywhere to actually park the scope. (Or to set tracking rates, which is useful as I do both DSO and linear/planetary imaging.

How to fix this?

Thanks, Bob Gillette


Re: APCC model like Mach2

Ray Gralak
 

Hi Max,

That feature has been done for over 18 months, having been in successful beta-tests during that time. However, it will be bundled with a few other new features (like support for plate solves using ASTAP) that are still under test and development. I can't give you a specific date yet because progress depends on the weather and other factors.

-Ray

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Max Mirot via groups.io
Sent: Wednesday, March 17, 2021 8:56 AM
To: main@ap-gto.groups.io
Subject: [ap-gto] APCC model like Mach2

Ray,

When is the Dec arc tracking model coming out in APCC?
I would like trying with my AP1100

Thanks

Max Mirot


Re: Help Parking AP 900 in TheSky #ASCOM_V2_Driver

Bob Gillette
 

Thanks, John. I've also read that.  Park 1 has never been a problem for me, but I'd happily go with Park 4 if something gave me any park options.  (I parked the scope today with the handset, but that's so... manual.)

CS, Bob


Re: Help Parking AP 900 in TheSky #ASCOM_V2_Driver

John Shutz
 

This probably doesn't help with your issue, I have an undated AP document that advises the previous Park 1 position has been relegated to obsolete status and replaced by the new Park 4 position.  This has something to do with lessening the chance of contact between the scope and pier using the Park 1 position which would often slew under the horizon after a start up from park.  Park 4 has the same advantages as Park 1, but minimizes any lower than the horizon slews.  However, according to the document, Park 1 has not been deleted, AP advises you could still use it but do so with caution.  That tells me Park 1 is still an active option just like the other park positions and your problem doesn't relate to the AP advisory I mentioned.  I wonder if APCC has any influence here? You would expect the AP driver setup utility would dictate things, who's the boss?   



----- Original Message -----
From:
main@ap-gto.groups.io

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

Sent:
Wed, 17 Mar 2021 14:20:30 -0700
Subject:
[ap-gto] Help Parking AP 900 in TheSky #ASCOM_V2_Driver #ASCOM_V2_Driver


I run my AP900/CP3 setup from MaxIM DL 5.24 and TheSky6 (yes, I know.) All worked fine until I decided to download the  current AP driver 5.3010 and the current ASCOM plugin for TheSky5/6, V5.0.04.

MaxIM does now talk to TheSky and everybody talks to the mount. But...in TheSky/Telescope/Options, the menus to set tracking rates and to park the scope have now disappeared.  Yes, I have specified in the AP driver setup utility that the mount should start and end at Park 1.

But I can no longer find a command anywhere to actually park the scope. (Or to set tracking rates, which is useful as I do both DSO and linear/planetary imaging.

How to fix this?

Thanks, Bob Gillette


Help Parking AP 900 in TheSky #ASCOM_V2_Driver

Bob Gillette
 

I run my AP900/CP3 setup from MaxIM DL 5.24 and TheSky6 (yes, I know.) All worked fine until I decided to download the  current AP driver 5.3010 and the current ASCOM plugin for TheSky5/6, V5.0.04.

MaxIM does now talk to TheSky and everybody talks to the mount. But...in TheSky/Telescope/Options, the menus to set tracking rates and to park the scope have now disappeared.  Yes, I have specified in the AP driver setup utility that the mount should start and end at Park 1.

But I can no longer find a. command anywhere to actually park the scope. (Or to set tracking rates, which is useful as I do both DSO and linear/planetary imaging.

How to fix this?

Thanks, Bob Gillette


Re: Running APMM with Moon

mjb87@...
 

Thanks very much for the advice.

My apologies for the APPM in the title -- I keep getting it all confused.


APCC model like Mach2

Max Mirot
 

Ray,

When is the Dec arc tracking model coming out in APCC?
I would like trying with my AP1100

Thanks

Max Mirot

7061 - 7080 of 84163