Date   

Re: AP1600GTOE RA drift

Steven
 

Hey Craig,

Pulse Guide is really good for that. So good that they don't make it any more. Get a copy and solve the problem.

Steve




From: ap-gto@... on behalf of craig.young.m8@... [ap-gto]
Sent: Saturday, 8 April 2017 12:04 a.m.
To: ap-gto@...
Subject: RE: [ap-gto] Re: AP1600GTOE RA drift
 
 

Since the tracking measurements were made on the meridian, and the RA drift is much greater than the DEC drift then I would guess the problem is in the RA axis somewhere.  I just got back from the observatory (remote) and did find a couple of loose bolts on the RA head .. I tightened them down and then did some slewing tests to make sure I didn't break anything.  Maybe this was the problem.  We are scheduled for clear skies tonight so will do a new model and tracking tests.  Skies permitting I'll update this thread tomorrow with the new results.

With a 132 point model the best I could do unguided was about 25 seconds imaging before the stars became elongated.  I have read many are doing several minutes unguided, hence my concern something is wrong.  I wrote this Tracking Analyzer program to assist in evaluating the problem.  What it does is similar to the software program FlexRx where images are plate solved and an drift correction in RA and DEC are calculated.  This information is then passed to the mount as an update to its current corrections.  The idea is to take a couple of test images at the beginning of an imaging session to establish the RA and DEC correction rates and then analyze each subsequent image for correction updates (tweaks) to those rates.  Ideally though you could start with the APPM model correction rates and then pass updates if it is not quite right or there is some other drift present, maybe due to temperature changes on the mechanicals or optics that the model could not account for.  As mentioned above, with the 132 point model I could do 25 seconds before star elongation, but with this method I can do 600 seconds unguided with a 1 pixel or less error.

So far it works very well, and eventually it would be great to have this added to either PEMPRO or PHD2 as an alternative guiding method.  PEMPRO has all the tools already available including plate solve and mount control, so this should be easy to add.

Craig


Re: AP1600GTOE RA drift

Craig Young
 

Since the tracking measurements were made on the meridian, and the RA drift is much greater than the DEC drift then I would guess the problem is in the RA axis somewhere.  I just got back from the observatory (remote) and did find a couple of loose bolts on the RA head .. I tightened them down and then did some slewing tests to make sure I didn't break anything.  Maybe this was the problem.  We are scheduled for clear skies tonight so will do a new model and tracking tests.  Skies permitting I'll update this thread tomorrow with the new results.

With a 132 point model the best I could do unguided was about 25 seconds imaging before the stars became elongated.  I have read many are doing several minutes unguided, hence my concern something is wrong.  I wrote this Tracking Analyzer program to assist in evaluating the problem.  What it does is similar to the software program FlexRx where images are plate solved and an drift correction in RA and DEC are calculated.  This information is then passed to the mount as an update to its current corrections.  The idea is to take a couple of test images at the beginning of an imaging session to establish the RA and DEC correction rates and then analyze each subsequent image for correction updates (tweaks) to those rates.  Ideally though you could start with the APPM model correction rates and then pass updates if it is not quite right or there is some other drift present, maybe due to temperature changes on the mechanicals or optics that the model could not account for.  As mentioned above, with the 132 point model I could do 25 seconds before star elongation, but with this method I can do 600 seconds unguided with a 1 pixel or less error.

So far it works very well, and eventually it would be great to have this added to either PEMPRO or PHD2 as an alternative guiding method.  PEMPRO has all the tools already available including plate solve and mount control, so this should be easy to add.

Craig


Re: APCC gives an error message

Chris Patrick
 

Hi Ray,


The "E" drive is an external hard drive I use for backup and for astro related "stuff". I opened the backup copy from the external hard drive, it ran, I entered site data, closed it, and then was unable to load/run it from my external drive. After your reply I looked in the start menu and the APCC start logo was there. It wasn't there earlier when I tried to start it prior to running it from the E drive. APCC now starts from the start menu.


Now there is another problem. I am unable to download the latest version of APCC. My anti-virus software says there is a Trojan in APCC. No matter what I do it will not allow me to run the latest update. My anti-virus software is Kaspersky. How do I make Kaspersky allow APCC to load and run? I've told Kaspersky APCC is from a trusted source, but it won't allow it.


Thank you for your help!


Chris 


Re: AP1600GTOE RA drift

Ray Gralak
 

is then in the RA
axis, with the cw's hanging out there horizontal?
Yes, exactly... don't you think that the CW is bending the CW shaft with some effect along the RA axis because that CW is sticking out horizontally? (You bet!)

The counterweight side of the mount does not matter but the telescope, focuser, and camera are all bending with some component along the RA axis. As the axis moves away from horizontal (because of RA tracking) the amount of bending continuously changes, which will cause apparent tracking rate changes in both RA and Dec. The pointing model attempts to fix this, but because of temperature changes, refraction, and even cables/tube currents, the corrections are seldom perfect.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro: http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma


-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 7, 2017 7:42 PM
To: ap-gto@...
Subject: [ap-gto] Re: AP1600GTOE RA drift



But given the orientation of the scope, I don't think the flexure is due to the OTA
because it would flex in DEC only. Are you thinking the flexure is then in the RA
axis, with the cw's hanging out there horizontal?

The good thing though is once I enter the measured RA drift into APCC it then
tracks perfectly. What it requires though is I need to take two or three 60 second
images and measure the drift correction before beginning an imaging session. If I
do this I can then take 10 minute images unguided.

Craig


Re: AP1600GTOE RA drift

Craig Young
 

But given the orientation of the scope, I don't think the flexure is due to the OTA because it would flex in DEC only.  Are you thinking the flexure is then in the RA axis, with the cw's hanging out there horizontal?

The good thing though is once I enter the measured RA drift into APCC it then tracks perfectly.  What it requires though is I need to take two or three 60 second images and measure the drift correction before beginning an imaging session.  If I do this I can then take 10 minute images unguided.

Craig


Re: APPM and TheSkyX

Ray Gralak
 

Steve,

In the case you are describing (ThSkyX+TPoint) APCC will sync with whatever coordinates that TheSkyX gives it. How closely that sync into the TPoint model matches TheSkyX is something that I think you would need to ask Software Bisque. When you work in that way the mount is not doing any RA/Dec coordinate translation. It is all in TPoint and TheSkyX.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro: http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma

-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 7, 2017 2:00 PM
To: ap-gto@...
Subject: RE: [ap-gto] APPM and TheSkyX



I am having trouble with this in my head. Per The SkyX, it has defined the mount
position based on plate solves. APCC says the mount is in a different position. As a
result of the plate solves, is not the mount position as displayed by The SkyX not
the correct position and the position as noted by APCC wrong and should not APCC
be adjusted to the position as noted in The SkyX? If this thinking is correct, can not
the syncing of APCC to The Sky X position be done somehow, possibly by the
APCC Go To/ReCal command?



From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 07, 2017 2:41 PM
To: ap-gto@...
Subject: RE: [ap-gto] APPM and TheSkyX





Hi Steve,

I am using APCC along with TSX and T Point generated model. What is the best
way to sync the APCC mount position to TSX mount position?
I think you should just use TheSkyX's Sync feature. I think there are a couple
different ways to use it, like centering a star in the scope and right clicking on the
star and selecting Sync in TheSkyX. Of course you should be connected via the
ASCOM driver or have TheSkyX directly connected to an APCC virtual port.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-
physics.com/index.htm?products/ac cessories/software/apcc/apcc
<http://www.astro-
physics.com/index.htm?products/accessories/software/apcc/apcc>
Author of PEMPro: http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma

-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 7, 2017 7:46 AM
To: ap-gto@...
Subject: RE: [ap-gto] APPM and TheSkyX



Hi Ray,



I am using APCC along with TSX and T Point generated model. What is the best
way to sync the APCC mount position to TSX mount pos ition?



Thank you,



Steve Wiencek



From: ap-gto@... [mailto:ap-gto@...]
Sent: Thursday, April 06, 2017 10:51 PM
To: ap-gto@...
Subject: RE: [ap-gto] APPM and TheSkyX





Hi Kerry,

Did you try turning off refraction in TheSkyX? If TheSkyX and Apcc's model are
both applying correction for refraction then the position will be off.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-
physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro: http://www.ccdware.com
A uthor of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma

-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
Sent: Thursday, April 6, 2017 1:40 PM
To: ap-gto@...
Subject: RE: [ap-gto] APPM and TheSkyX



Hi Ray,

I can slew to a star using TheSkyX Pro with the FOV indicator/crosshairs
centered
on the star. Take an image where the star is invariably not centered on the chip,
plate so lve that image using APPM plate solve and recal and TheSkyX
FOV/crosshairs are not updated after the recal.

Also, I should be using the ASCOM 2X Mount Adaptor (http://ascom-
standards.org/Downloads/ScopeDrivers.htm#Bisque2x) together with TheSkyX
Pro
and the AP V2 ASCOM Driver instead of the old TeleAPI, correct?

Thanks,
Kerry



Re: AP1600GTOE RA drift

Ray Gralak
 

To check tracking I point the telescope at 0 DEC and HA=-0 10 00 (ie, 10 minutes
east of the meridian).
At this location there should be no RA drift and only a DEC
drift as a result of any remaining polar alignment error.
Sorry, but that's not true. Even with perfect tracking, RA drift can occur because of even the tiniest amount flexure of the scope, focuser, and camera assembly. For instance, I can measure easily it with my AP Traveler on my 1200 mount.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro: http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma


-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 7, 2017 1:35 PM
To: ap-gto@...
Subject: [ap-gto] AP1600GTOE RA drift



I have polar aligned the mount and without using a pointing model I get good
pointing accuracy, always close to the center of the ccd sensor. I have used
PEMPRO to check the alignment and it also shows the mount is well polar aligned.

To check tracking I point the telescope at 0 DEC and HA=-0 10 00 (ie, 10 minutes
east of the meridian). At this location there should be no RA drift and only a DEC
drift as a result of any remaining polar alignment error. I then take a 10 second
image, wait 5 minutes and take another 10 second image. I plate solve both images
and get this:



Drift:
Rho (arc-sec): 4.3
Rho (pixels ): 7.6
Theta (degrees): 77.3

RA (arc-sec): 4.2
RA (pixels): 7.4

DEC (arc-sec): 0.9
DEC (pixels): 1.7

Duration (seconds): 317

Drift Rate (arcsec/sec): 0.0136 @ 77.3 degrees

Drift Rate RA (arcsec/sec) : 0.0133

Drift Rate DEC (arcsec/sec): 0.0030




Rho is the arc second displacement from the plate solve of image 1 to image 2. The
plate scale is 0.57 arcsec/pixel.




Theta is the direction of the drift.




Notice the drift in RA is 4.2 arcsec and DEC is 0.9 arcsec. This is where I am
puzzled, the DEC drift I would expect because of a slight polar alignment error, but
why the very large RA error when this mount has absolute encoders?





My first thought is the encoders or clock is off, or there is a Southern Hemisphere
correction being applied that is opposite to what it should be.




Craig








Re: AP1600GTOE RA drift

Craig Young
 

Yes, the encoders should be used during tracking, especially to take out periodic error due to the worm drive.  From what I can see, it does this very well so I am sure the encoders are working.  But given the large error in RA tracking I'm thinking it is not calibrated or there is some sort of slippage in RA.

The firmware should be comparing the movement of the encoder over a period of time.  For sidereal tracking it knows what movement should be for a given time period.  But, if the time period is derived from an oscillator and the oscillator is running slow or fast then the firmware will not know that and the sidereal rate will be off by a small amount.  I have had to do this on other mounts so I am suspecting that is the cause here.

Otherwise maybe there is some sort of slippage, at this position the cw's are horizontal so they will have the maximum torque I guess on the RA servo.  Maybe if the axis is slightly out of balance the servos slip, but I would have thought the encoder would see this and adjust for it.

Craig


Re: Polemaster

Dick Hoey
 

I like my Rapas to much to cover it up. I just use 2 pipe hangers from Home Depot and put it on the weight bar. Use the Rapas to get close then refine with polemaster.  It works fine. The polemaster owners manual says it is not required to be on the rotation axes of the mount. 

Sent from Dick's phone. 




On Apr 7, 2017, at 02:02, Suresh Mohan Neelmegh drsureshmohan@... [ap-gto] <ap-gto@...> wrote:

 

My friend has sent me the pole master to use for the weekend For my Mach 1 . Any idea if I can just stick on front with duct tape ? His mount is eq6 . I do have my own RAPAS
Suresh
Ps telescope is in north ( closed sit out )of my house I can see a little higher than Ursa Major that's all
Thanks
Suresh


Re: AP1600GTOE RA drift

Jon <jmartin590@...>
 




Craig,
When Roland was at NEAF, the video made by Sky and Telescope explained that the encoders do in fact maintain the scopes position on a dso and will even push back against wind deflection to do it.

Jon

On 4/7/2017 2:54 PM, 'Joseph Zeglinski' J.Zeglinski@... [ap-gto] wrote:
 

Craig, et al.
 
Interesting – A Supplemental question, from me.
    Now that you mention it, does the “Encoder Option” really only function for positioning during a GOTO?
I didn’t think the encoders play any part during tracking – that’s the servo’s responsibility, with a good polar align to begin with. Don’t know if Encoders even affect PemPro PA improvement, when it does its slews, since it is all about using good “tracking” to begin with.
 
Joe



Re: APPM and TheSkyX

swiencek
 

I am having trouble with this in my head. Per The SkyX, it has defined the mount position based on plate solves. APCC says the mount is in a different position. As a result of the plate solves, is not the mount position as displayed by The SkyX not the correct position and the position as noted by APCC wrong and should not APCC be adjusted to the position as noted in The SkyX? If this thinking is correct, can not the syncing of APCC to The Sky X position be done somehow, possibly by the APCC Go To/ReCal command?

 

From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 07, 2017 2:41 PM
To: ap-gto@...
Subject: RE: [ap-gto] APPM and TheSkyX

 

 

Hi Steve,

> I am using APCC along with TSX and T Point generated model. What is the best
> way to sync the APCC mount position to TSX mount position?

I think you should just use TheSkyX's Sync feature. I think there are a couple different ways to use it, like centering a star in the scope and right clicking on the star and selecting Sync in TheSkyX. Of course you should be connected via the ASCOM driver or have TheSkyX directly connected to an APCC virtual port.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro: http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma

> -----Original Message-----
> From: ap-gto@... [mailto:ap-gto@...]
> Sent: Friday, April 7, 2017 7:46 AM
> To: ap-gto@...
> Subject: RE: [ap-gto] APPM and TheSkyX
>
>
>
> Hi Ray,
>
>
>
> I am using APCC along with TSX and T Point generated model. What is the best
> way to sync the APCC mount position to TSX mount position?
>
>
>
> Thank you,
>
>
>
> Steve Wiencek
>
>
>
> From: ap-gto@... [mailto:ap-gto@...]
> Sent: Thursday, April 06, 2017 10:51 PM
> To: ap-gto@...
> Subject: RE: [ap-gto] APPM and TheSkyX
>
>
>
>
>
> Hi Kerry,
>
> Did you try turning off refraction in TheSkyX? If TheSkyX and Apcc's model are
> both applying correction for refraction then the position will be off.
>
> -Ray Gralak
> Author of APCC (Astro-Physics Command Center): http://www.astro-
> physics.com/index.htm?products/accessories/software/apcc/apcc
> Author of PEMPro: http://www.ccdware.com
> Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
> Author of PulseGuide: http://www.pulseguide.com
> Author of Sigma: http://www.gralak.com/sigma
>
> > -----Original Message-----
> > From: ap-gto@... [mailto:ap-gto@...]
> > Sent: Thursday, April 6, 2017 1:40 PM
> > To: ap-gto@...
> > Subject: RE: [ap-gto] APPM and TheSkyX
> >
> >
> >
> > Hi Ray,
> >
> > I can slew to a star using TheSkyX Pro with the FOV indicator/crosshairs
> centered
> > on the star. Take an image where the star is invariably not centered on the chip,
> > plate solve that image using APPM plate solve and recal and TheSkyX
> > FOV/crosshairs are not updated after the recal.
> >
> > Also, I should be using the ASCOM 2X Mount Adaptor (http://ascom-
> > standards.org/Downloads/ScopeDrivers.htm#Bisque2x) together with TheSkyX
> Pro
> > and the AP V2 ASCOM Driver instead of the old TeleAPI, correct?
> >
> > Thanks,
> > Kerry
> >
> >
> >
>
>


Re: AP1600GTOE RA drift

Joe Zeglinski
 

Craig, et al.
 
Interesting – A Supplemental question, from me.
    Now that you mention it, does the “Encoder Option” really only function for positioning during a GOTO?
I didn’t think the encoders play any part during tracking – that’s the servo’s responsibility, with a good polar align to begin with. Don’t know if Encoders even affect PemPro PA improvement, when it does its slews, since it is all about using good “tracking” to begin with.
 
Joe


AP1600GTOE RA drift

Craig Young
 

I have polar aligned the mount and without using a pointing model I get good pointing accuracy, always close to the center of the ccd sensor.  I have used PEMPRO to check the alignment and it also shows the mount is well polar aligned.

To check tracking I point the telescope at 0 DEC and HA=-0 10 00 (ie, 10 minutes east of the meridian).  At this location there should be no RA drift and only a DEC drift as a result of any remaining polar alignment error.  I then take a 10 second image, wait 5 minutes and take another 10 second image.  I plate solve both images and get this:

Drift:
  Rho (arc-sec): 4.3
  Rho (pixels ): 7.6
  Theta (degrees): 77.3
 
  RA (arc-sec): 4.2
  RA (pixels): 7.4
 
  DEC (arc-sec): 0.9
  DEC (pixels): 1.7
 
Duration (seconds): 317
 
Drift Rate (arcsec/sec): 0.0136 @ 77.3 degrees
 
Drift Rate RA (arcsec/sec): 0.0133
 
Drift Rate DEC (arcsec/sec): 0.0030


Rho is the arc second displacement from the plate solve of image 1 to image 2.  The plate scale is 0.57 arcsec/pixel.


Theta is the direction of the drift.


Notice the drift in RA is 4.2 arcsec and DEC is 0.9 arcsec.  This is where I am puzzled, the DEC drift I would expect because of a slight polar alignment error, but why the very large RA error when this mount has absolute encoders?


My first thought is the encoders or clock is off, or there is a Southern Hemisphere correction being applied that is opposite to what it should be.


Craig




Re: Polemaster

Christopher Erickson
 

DEC motor box.
 
 
Christopher Erickson
Consulting Engineer
Summit Kinetics
Waikoloa, HI 96738
www.summitkinetics.com
 



From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 07, 2017 8:48 AM
To: ap-gto@...
Subject: Re: [ap-gto] Polemaster

I used plastic velcro from 3M. Worked great on my Mach1's RA motor box

On Apr 7, 2017 2:02 AM, "Suresh Mohan Neelmegh drsureshmohan@... [ap-gto]" wrote:
 

My friend has sent me the pole master to use for the weekend For my Mach 1 . Any idea if I can just stick on front with duct tape ? His mount is eq6 . I do have my own RAPAS
Suresh
Ps telescope is in north ( closed sit out )of my house I can see a little higher than Ursa Major that's all
Thanks
Suresh



Re: APCC gives an error message

Ray Gralak
 

Chris,

I then opened APCC from my "E" drive,
Sorry, I don't understand what you mean by opening it from another drive. If you have installed APCC and you cannot find the icon on your desktop, you can always run APCC from the Start menu. The icon might be hidden behind another icon for some reason.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro: http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma


-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 7, 2017 10:11 AM
To: ap-gto@...
Subject: [ap-gto] APCC gives an error message



Hi All,

On March 28, 2017 I downloaded APCC with the activation code to run it. I saved
it to my "C" drive and also a backup copy to my "E" drive. I opened APCC the
night I downloaded it to set it up. It ran through it's procedure and opened to my
desktop with no problems. When I closed out of it I was surprised to find it did not
place an icon on my desktop. Since then I have been busy with a few other
projects and haven't tried to open it again until this morning. Today I tried to open
APCC from my "C" drive and got an error message saying, "Windows can not
Access the specified device, path, or file. You may not have the appropriate
permissions to access the item." I then opened APCC from my "E" drive, went
through the setup procedure again, set up the various sites I observe from, and
then closed out. Again, there was no icon on the desktop. Now when I try to open
APCC from e ither drive I get the same error message as above. I also can not
open APCC from either drive by right clicking and trying "Run as Administrator".
Obliviously (:-) I've done something wrong!, but have no clue what it would be.
How do I get APCC to run and place an easy access icon on my desktop?




Thank you for your help!

Chris Patrick


Re: APPM and TheSkyX

Ray Gralak
 

Hi Steve,

I am using APCC along with TSX and T Point generated model. What is the best
way to sync the APCC mount position to TSX mount position?
I think you should just use TheSkyX's Sync feature. I think there are a couple different ways to use it, like centering a star in the scope and right clicking on the star and selecting Sync in TheSkyX. Of course you should be connected via the ASCOM driver or have TheSkyX directly connected to an APCC virtual port.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro: http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma


-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 7, 2017 7:46 AM
To: ap-gto@...
Subject: RE: [ap-gto] APPM and TheSkyX



Hi Ray,



I am using APCC along with TSX and T Point generated model. What is the best
way to sync the APCC mount position to TSX mount position?



Thank you,



Steve Wiencek



From: ap-gto@... [mailto:ap-gto@...]
Sent: Thursday, April 06, 2017 10:51 PM
To: ap-gto@...
Subject: RE: [ap-gto] APPM and TheSkyX





Hi Kerry,

Did you try turning off refraction in TheSkyX? If TheSkyX and Apcc's model are
both applying correction for refraction then the position will be off.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-
physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro: http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma

-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
Sent: Thursday, April 6, 2017 1:40 PM
To: ap-gto@...
Subject: RE: [ap-gto] APPM and TheSkyX



Hi Ray,

I can slew to a star using TheSkyX Pro with the FOV indicator/crosshairs
centered
on the star. Take an image where the star is invariably not centered on the chip,
plate solve that image using APPM plate solve and recal and TheSkyX
FOV/crosshairs are not updated after the recal.

Also, I should be using the ASCOM 2X Mount Adaptor (http://ascom-
standards.org/Downloads/ScopeDrivers.htm#Bisque2x) together with TheSkyX
Pro
and the AP V2 ASCOM Driver instead of the old TeleAPI, correct?

Thanks,
Kerry



Re: Polemaster

David Beckemeier <beckemd@...>
 

I used plastic velcro from 3M. Worked great on my Mach1's RA motor box

On Apr 7, 2017 2:02 AM, "Suresh Mohan Neelmegh drsureshmohan@... [ap-gto]" <ap-gto@...> wrote:
 

My friend has sent me the pole master to use for the weekend For my Mach 1 . Any idea if I can just stick on front with duct tape ? His mount is eq6 . I do have my own RAPAS
Suresh
Ps telescope is in north ( closed sit out )of my house I can see a little higher than Ursa Major that's all
Thanks
Suresh



Re: Polemaster

Christopher Erickson
 

I got a PoleMaster for testing and I can barely get it to work here at 19+ degrees on the Big Island of Hawaii.
 
FWIW, I can get it to work better if I first do a polar alignment in my Mach1's RAPAS or my 1100's PASILL4.  Which certainly limits it value to me.
 
And then there is it's apparent lack of compensation for atmospheric refraction and why if I need to do a really serious polar alignment I still use PEMPro.
 
 
Christopher Erickson
Consulting Engineer
Summit Kinetics
Waikoloa, HI 96738
www.summitkinetics.com
 



From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 07, 2017 5:30 AM
To: ap-gto@...
Subject: Re: [ap-gto] Polemaster

Ok I've locked Polaris with RAPAS , I can see Polaris and just one more star that's way too faint in Polemaster to make my next move . Will either try late night or tommorow . I tried various gain and exposure settings by can only see two stars . As of now RAPAS wins ( my RAPAS is calibrated already) will post update after haze reduces 
Suresh


On 07-Apr-2017, at 5:47 PM, pnagy@... [ap-gto] <ap-gto@...> wrote:

 

Dec axis motor, not RA motor.

Peter


Re: Polemaster

Christopher Erickson
 

Yes, the DEC axis motor.
 
 
Christopher Erickson
Consulting Engineer
Summit Kinetics
Waikoloa, HI 96738
www.summitkinetics.com
 



From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, April 07, 2017 2:17 AM
To: ap-gto@...
Subject: Re: [ap-gto] Polemaster

Dec axis motor, not RA motor.

Peter


APCC gives an error message

Chris Patrick
 

Hi All,

On March 28, 2017 I downloaded APCC with the activation code to run it. I saved it to my "C" drive and also a backup copy to my "E" drive. I opened APCC the night I downloaded it to set it up. It ran through it's procedure and opened to my desktop with no problems. When I closed out of it I was surprised to find it did not place an icon on my desktop. Since then I have been busy with a few other projects and haven't tried to open it again until this morning. Today I tried to open APCC from my "C" drive and got an error message saying, "Windows can not Access the specified device, path, or file. You may not have the appropriate permissions to access the item."  I then opened APCC from my "E" drive, went through the setup procedure again, set up the various sites I observe from, and then closed out. Again, there was no icon on the desktop. Now when I try to open APCC from either drive I get the same error message as above. I also can not open APCC from either drive by right clicking and trying "Run as Administrator". Obliviously (:-) I've done something wrong!, but have no clue what it would be. How do I get APCC to run and place an easy access icon on my desktop?


Thank you for your help!

Chris Patrick