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Re: APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Bill Long
 

Hi Andrea,

Here is the first about 3 hours of log data:

https://www.dropbox.com/s/oi8ppsfjfv45gh8/Bill%20Logs.zip?dl=0

I will send more tomorrow, but I thought I would get you something to review while I am sleeping. 🙂 

_______________________________________________________________________________________________________________________________________________________________
Legal Disclaimer: This email and any files transmitted with it are confidential and intended solely for the individual entity to whom they are addressed.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Tuesday, November 15, 2022 3:30 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO
 
Hello Andrea,

I will be imaging tonight with Dec Arc mode with the Mach 2 and Epsilon combo. I can get a fresh APCC log and share that with you in the morning.

Bill


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Andrea Lucchetti <andlucchett@...>
Sent: Tuesday, November 15, 2022 11:29 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO
 
Hi Howard,
I think in my case non orthogonality could be caused also by collimation: 
I mean, telescope can be collimated but the optical axis of a newtonian is not necessarily coincident with the ota axis.
I can work on this but it is not easy.
That's why I need a model that works.

I think I need to run a night unguided and collect data: my problems are now related with modeling +guiding at the same time, it is probably better to check if modeling alone solve everything.

I will implement a couple of suggestions that came out in the thread:
-decrease the spacing in RA
-increase settling time
-dial in correct temperature and pressure
-I am building a new mirror cell but it takes time: hopefully that will keep the mirror more stable and  I will have the chance of re-squaring the focuser (I hate this part...)

if someone could share an APPC log with Dec arc tracking that would be useful for me: I could check the magnitude of RA corrections and understand if mine are reasonable or not.
Thank you,
Andrea

Il giorno mar 15 nov 2022 alle ore 16:46 Howard Hedlund <howard@...> ha scritto:
I have two points to bring up:
1.  In general, I have been able to mitigate the difference in E and W model quality by eliminating the actual mechanical orthogonality issue.  Fixing orthogonality is a bit of a pain, but it's often worth the effort.  I've been running test and beta versions of APCC for so long, I've forgotten if this is in the current release, but the next APCC will include a specific orthogonality measurement during the APPM mapping run.  Regardless, if a mechanical issue can be addressed mechanically, it will always be better than forcing a model to try to correct the issue.  
2.  Try Rolando's method for making a final tweak to your otherwise perfect polar alignment to eliminate RA drift - especially at higher altitudes.
  • Drift Alignment R.A. Correction Method - PDF document providing a step by step method to achieve high precision alignment within 45 degrees of the zenith. This method provides quick alignment for the prime imaging area. A CCD camera and guide software are required.
If you want to hear how well this RA Correction Method works in practice, just ask our buddy, George!

Re: APCC - New setup #APCC

Brian Valente
 

Hi sharath

Yes use the rest api

On Wed, Nov 16, 2022 at 1:32 AM Bharath via groups.io <02-call.scribes=icloud.com@groups.io> wrote:
Hi

For a new mount and software installation, is the consensus here that REST API be used as opposed to the virtual ports?

Thank you 
Bharath

--

APCC - New setup #APCC

Bharath
 

Hi

For a new mount and software installation, is the consensus here that REST API be used as opposed to the virtual ports?

Thank you 
Bharath
Re: PHD??

Brian Valente
 

>>>Do you know if they have an official mirror of the installers?

i don't know for sure, but i'm not aware of one. 

This is the first time their site has gone offline so maybe they are thinking about that now



On Tue, Nov 15, 2022 at 8:35 PM Bill Long <bill@...> wrote:
Hope everything is okay for them and that the problem gets resolved. 

Do you know if they have an official mirror of the installers? While I think it is wonderful of people to step up and help out as was done here -- my security hat tells me that unofficial means of obtaining binaries has some risk associated with it. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Brian Valente <bvalente@...>
Sent: Tuesday, November 15, 2022 3:59 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] PHD??
 
Hi Gregory

the PHD website is down right now, it should be back up in a few days. technical difficulties

 



On Tue, Nov 15, 2022 at 3:41 PM <gmiller2005@...> wrote:
Hi all:
Forgive me for asking a question that should be directed to another forum, but I'm reluctant to join yet another forum! Perhaps this is for Brian:
I had a disaster with my laptop last week and had to have a complete re-install of Windows 10. I had all my files backed up, but had to re-install all my programs. I got everything going except PHD2. The website (openphdguiding.org) times out when I attempt to connect, so needless to say, I cant download the program if I can't even access the website. I'm not getting any notifications about my system blocking the website for whatever reason so I'm at a loss.
Any ideas are very much appreciated.

Gregory B. Miller



--



--

Re: PHD??

Bill Long
 

Hope everything is okay for them and that the problem gets resolved. 

Do you know if they have an official mirror of the installers? While I think it is wonderful of people to step up and help out as was done here -- my security hat tells me that unofficial means of obtaining binaries has some risk associated with it. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Brian Valente <bvalente@...>
Sent: Tuesday, November 15, 2022 3:59 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] PHD??
 
Hi Gregory

the PHD website is down right now, it should be back up in a few days. technical difficulties

 



On Tue, Nov 15, 2022 at 3:41 PM <gmiller2005@...> wrote:
Hi all:
Forgive me for asking a question that should be directed to another forum, but I'm reluctant to join yet another forum! Perhaps this is for Brian:
I had a disaster with my laptop last week and had to have a complete re-install of Windows 10. I had all my files backed up, but had to re-install all my programs. I got everything going except PHD2. The website (openphdguiding.org) times out when I attempt to connect, so needless to say, I cant download the program if I can't even access the website. I'm not getting any notifications about my system blocking the website for whatever reason so I'm at a loss.
Any ideas are very much appreciated.

Gregory B. Miller



--

Re: AP1200GTO - PEMPRO Read Factory PEC Curve

Bill Long
 

I read the upgrade information here:

https://www.astro-physics.info/index.htm?tech_support/mounts/servo/cp3-chipupgrade

Since you are upgrading from the L chip you will have to redo the PEM and you cannot save the existing curve and just upload it as per this document:

 To accommodate the added features of these newer chips, the location in the GTOCP3's non-volatile memory where time, location, gear angle and PE information is permanently stored has been changed.

Ray will need to chime in on if you can read the existing curve from the mount in PEMPro (I would think so, but he is the expert) but that may not be as useful as you would think -- since the worm will have changed over time and the factory curve you have in the mount is likely invalid anyhow. Especially if by factory curve, you mean one that is quite a few years old.

If it were me, I would just plan to get a very good set of data for the new curve and have enough time set aside to obtain the data, validate the data, and even explore a refined curve (basically your first curve + the validation curve = new curve) if the residual error you find is too high for your liking. My experience with PEMPro on AP mounts has been that refined curves really are not needed since PEMPro does an excellent job of correcting AP mount PE.

HTH,

Bill 



From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of rboudah@... <rboudah@...>
Sent: Tuesday, November 15, 2022 7:46 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] AP1200GTO - PEMPRO Read Factory PEC Curve
 
I am ordering the V2 chip but I read you lose the PEC curve when you put in the new chip, so I thought I might be able to upload the current factory one first . Even if I can't download it to the mount it would be nice to see the original factory curve and compare it with the new one I make. 

Rick

Re: AP1200GTO - PEMPRO Read Factory PEC Curve

rboudah@...
 

I am ordering the V2 chip but I read you lose the PEC curve when you put in the new chip, so I thought I might be able to upload the current factory one first . Even if I can't download it to the mount it would be nice to see the original factory curve and compare it with the new one I make. 

Rick
Re: A Mach1GTO Adventure: Does RA Gear Meshing Require Generating a New PEC?

Bill Long
 

No problem, Ben.

Glad to hear you are able to take advantage of the nights we have had here as of late. I am up North in Snohomish, WA and not only have we had rare clear skies, the seeing has been pretty darn good for winter time! 

As for meshing, if you are not seeing any problems that you can correlate to the RA mesh, I would not bother with it. RA does not change directions as you track the sky or guide the mount. It will only speed up and slow down. If you grab the counter weight shaft and wiggle it with the pressure of a single finger and do not detect any significant movement -- it is probably fine. I think I read in one of the AP meshing docs that RA having a tiny bit of wiggle is better than the mesh being too tight.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Ben Koltenbah <benjamin.e.c.koltenbah@...>
Sent: Tuesday, November 15, 2022 6:51 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] A Mach1GTO Adventure: Does RA Gear Meshing Require Generating a New PEC?
 
Thank you, Chris, Bill and Roland for your unanimous response to my question about re-meshing RA and retaining the PEC.  I am so glad that I posted this question here and not on a popular forum that shall remain nameless.  The latter can yield good advice, however often at a low SNR.

I will consider re-meshing the RA tomorrow afternoon, although I'm not sure I really need it at this time.

This week has rare, clear November nights in the Pacific Northwet, and I've been enjoying my nice, round stars post DEC meshing.

Best Regards,
Ben

Re: AP1200GTO - PEMPRO Read Factory PEC Curve

Steven Panish
 

Rick,
I think PemPro V3 will require a V2 chip.  Should say on the PemPro web page.  I use it with a 1200...but I have the V2.

Steve

On Tue, Nov 15, 2022 at 12:42 PM <rboudah@...> wrote:
Can I use PEMPRO V3.00.46 to read and save the factory installed PEC curve before creating a new one, to compare and just in case reload it.

The mount is an AP1200GTO with CP3 Rev L

When I ask PEMPRO to read from the mount I get a table of 970 rows with 0 in the first row and 255 in all the rest.

Rick



--
PLEASE NOTE MY NEW EMAIL ADDRESS!!!
Due to Google eliminating cheap domain serving, Virginia and I are changing to regular gmail addresses.  The old panishnet address will forward to this address for a short while, but please add the new address, scpanish1@..., to your contact list.
Re: A Mach1GTO Adventure: Does RA Gear Meshing Require Generating a New PEC?

Ben Koltenbah
 

Thank you, Chris, Bill and Roland for your unanimous response to my question about re-meshing RA and retaining the PEC.  I am so glad that I posted this question here and not on a popular forum that shall remain nameless.  The latter can yield good advice, however often at a low SNR.

I will consider re-meshing the RA tomorrow afternoon, although I'm not sure I really need it at this time.

This week has rare, clear November nights in the Pacific Northwet, and I've been enjoying my nice, round stars post DEC meshing.

Best Regards,
Ben
Re: APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Bill Long
 

That is a pretty cool set of images for analysis. 

The first image makes me think there is something going on in the environment at a timed recurrence. Something like an automated part of a pool, septic system, something like that. 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Brian Valente <bvalente@...>
Sent: Tuesday, November 15, 2022 5:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO
 
woops how did that happen

here's the correct pier side west (eastern sky)
image.png


On Tue, Nov 15, 2022 at 4:02 PM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
Your second picture is exactly the same as your first.

Rolando



-----Original Message-----
From: Brian Valente <bvalente@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 5:26 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

This view may help some

Pier Side West - this is RA over 4 hours scale is on left +/- 5"

hiccupy-things (flexure, sag, cable snag, mirror flop, seeing, who knows) indicated by small arcs
image.png

Pier Side East - this is RA over 3 hours scale is on the left +/- 5" same  hiccupy-things indication
image.png


On Tue, Nov 15, 2022 at 2:59 PM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
You attached a picture in your last post. Please explain what this is. Scale, time period, etc.

Rolando

-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 4:06 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Thank you Brian.
if you look at the RA line in the guiding plot you see that is almost always below zero.
The scatter diagram too is not centered.
I am trying to understand if this could be caused by drift, but I am not sure.
I had to increase aggressiveness to try to compensate for this. 
if you click on "drift " on the box you posted, you see that drift in DEC is 0, pol align error is zero, but RA drift is -0.26 arcsec/min.
The same is visible in the plot of raw RA (see photo attached), where you can see the cumulated drift over the 4 hours.
the difference between DEC and RA is clear.

My eccentricity is reported to be 0.55 on average at the center of the field.
This eccentricity is about the same in different nights, sky objects and with different rotation of the camera








Il giorno mar 15 nov 2022 alle ore 22:49 Brian Valente <bvalente@...> ha scritto:
Hi Andrea

Great that worked

Looking at your 4 hour run, your total RMS is 0.45" with RA RMS 0.30" and Dec RMS 0.28". 

this should result in nice tight round stars

it looks pretty good to me. Can you point out what concerns you?


image.png

On Tue, Nov 15, 2022 at 1:30 PM Andrea Lucchetti <andlucchett@...> wrote:
thank you for your patient :-)

Il giorno mar 15 nov 2022 alle ore 22:24 Brian Valente <bvalente@...> ha scritto:
getting closer :)

that is the debug log, i'm looking for the guidelog

if you just want to upload the one file here that would be great


On Tue, Nov 15, 2022 at 1:17 PM Andrea Lucchetti <andlucchett@...> wrote:
I am so sorry. try this last one:
I've verified the link, it should be there.
let me know if it doesn't work
thank you

Il giorno mar 15 nov 2022 alle ore 22:12 Brian Valente <bvalente@...> ha scritto:
sorry I still don't see a guidelog in there?

image.png

On Tue, Nov 15, 2022 at 12:57 PM Andrea Lucchetti <andlucchett@...> wrote:
I am sorry, try this one:
https://www.dropbox.com/t/DO1UyH8HNE7xvyyG

by the way, the RA rates are noted in the APPC log.
if you take the PHD log and check the raw data, you see a long period oscillation

Thank you
Andrea


--


--


--

--
Roland Christen
Astro-Physics


--

--
Roland Christen
Astro-Physics



--

Re: APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Brian Valente
 

woops how did that happen

here's the correct pier side west (eastern sky)
image.png


On Tue, Nov 15, 2022 at 4:02 PM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
Your second picture is exactly the same as your first.

Rolando



-----Original Message-----
From: Brian Valente <bvalente@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 5:26 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

This view may help some

Pier Side West - this is RA over 4 hours scale is on left +/- 5"

hiccupy-things (flexure, sag, cable snag, mirror flop, seeing, who knows) indicated by small arcs
image.png

Pier Side East - this is RA over 3 hours scale is on the left +/- 5" same  hiccupy-things indication
image.png


On Tue, Nov 15, 2022 at 2:59 PM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
You attached a picture in your last post. Please explain what this is. Scale, time period, etc.

Rolando

-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 4:06 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Thank you Brian.
if you look at the RA line in the guiding plot you see that is almost always below zero.
The scatter diagram too is not centered.
I am trying to understand if this could be caused by drift, but I am not sure.
I had to increase aggressiveness to try to compensate for this. 
if you click on "drift " on the box you posted, you see that drift in DEC is 0, pol align error is zero, but RA drift is -0.26 arcsec/min.
The same is visible in the plot of raw RA (see photo attached), where you can see the cumulated drift over the 4 hours.
the difference between DEC and RA is clear.

My eccentricity is reported to be 0.55 on average at the center of the field.
This eccentricity is about the same in different nights, sky objects and with different rotation of the camera








Il giorno mar 15 nov 2022 alle ore 22:49 Brian Valente <bvalente@...> ha scritto:
Hi Andrea

Great that worked

Looking at your 4 hour run, your total RMS is 0.45" with RA RMS 0.30" and Dec RMS 0.28". 

this should result in nice tight round stars

it looks pretty good to me. Can you point out what concerns you?


image.png

On Tue, Nov 15, 2022 at 1:30 PM Andrea Lucchetti <andlucchett@...> wrote:
thank you for your patient :-)

Il giorno mar 15 nov 2022 alle ore 22:24 Brian Valente <bvalente@...> ha scritto:
getting closer :)

that is the debug log, i'm looking for the guidelog

if you just want to upload the one file here that would be great


On Tue, Nov 15, 2022 at 1:17 PM Andrea Lucchetti <andlucchett@...> wrote:
I am so sorry. try this last one:
I've verified the link, it should be there.
let me know if it doesn't work
thank you

Il giorno mar 15 nov 2022 alle ore 22:12 Brian Valente <bvalente@...> ha scritto:
sorry I still don't see a guidelog in there?

image.png

On Tue, Nov 15, 2022 at 12:57 PM Andrea Lucchetti <andlucchett@...> wrote:
I am sorry, try this one:
https://www.dropbox.com/t/DO1UyH8HNE7xvyyG

by the way, the RA rates are noted in the APPC log.
if you take the PHD log and check the raw data, you see a long period oscillation

Thank you
Andrea


--


--


--

--
Roland Christen
Astro-Physics


--

--
Roland Christen
Astro-Physics



--

Re: APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Roland Christen
 

Please correct me if I am wrong, but I need to understand exactly how you are taking the data shown on your picture of the guider graph.

Time period 4 hrs  (yes, no)
Guided  (yes, no)
Modeled (yes, no)
Dec Arc modeled or All Sky modeled
Guide exposure time (seconds, plus delay between exposures)
Guide camera with off-axis guider on main instrument (yes, no)
Guide camera on separate guide scope (yes, no)
How are the cables attached from camera to your computer?
What is the minimum and maximum drift in arc seconds per hour in that guider graph?
Can you show a guider graph of 10 minutes and 60 minutes unguided?

I know it's like pulling teeth but I'm the dentist and I have to find out if there is an owie there.

Rolando

-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 5:38 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Roland, 
my be I've jumped one post? sorry for that if it is the case.

Regarding the commands: do I need just to power up and connect the mount right?
I don't have the mount with me now, but can answer in 1-2 days.
thank you

Il giorno mer 16 nov 2022 alle ore 00:23 Roland Christen via groups.io <chris1011=aol.com@groups.io> ha scritto:
I guess my post went out into the vapor-sphere and got lost.

Andrea, if you don't mind, please use APCC Terminal mode and type in the following commands. Let me know what the responses are:

$RS#
$RA#
$RN#
$GOS#
$GR#
$GD#

Thanks. It  will go a long way to perhaps explain what might be happening.

Rolando


-----Original Message-----
From: chris1011@...
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Tue, Nov 15, 2022 4:59 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

You attached a picture in your last post. Please explain what this is. Scale, time period, etc.

Rolando

-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 4:06 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Thank you Brian.
if you look at the RA line in the guiding plot you see that is almost always below zero.
The scatter diagram too is not centered.
I am trying to understand if this could be caused by drift, but I am not sure.
I had to increase aggressiveness to try to compensate for this. 
if you click on "drift " on the box you posted, you see that drift in DEC is 0, pol align error is zero, but RA drift is -0.26 arcsec/min.
The same is visible in the plot of raw RA (see photo attached), where you can see the cumulated drift over the 4 hours.
the difference between DEC and RA is clear.

My eccentricity is reported to be 0.55 on average at the center of the field.
This eccentricity is about the same in different nights, sky objects and with different rotation of the camera








Il giorno mar 15 nov 2022 alle ore 22:49 Brian Valente <bvalente@...> ha scritto:
Hi Andrea

Great that worked

Looking at your 4 hour run, your total RMS is 0.45" with RA RMS 0.30" and Dec RMS 0.28". 

this should result in nice tight round stars

it looks pretty good to me. Can you point out what concerns you?


image.png

On Tue, Nov 15, 2022 at 1:30 PM Andrea Lucchetti <andlucchett@...> wrote:
thank you for your patient :-)

Il giorno mar 15 nov 2022 alle ore 22:24 Brian Valente <bvalente@...> ha scritto:
getting closer :)

that is the debug log, i'm looking for the guidelog

if you just want to upload the one file here that would be great


On Tue, Nov 15, 2022 at 1:17 PM Andrea Lucchetti <andlucchett@...> wrote:
I am so sorry. try this last one:
I've verified the link, it should be there.
let me know if it doesn't work
thank you

Il giorno mar 15 nov 2022 alle ore 22:12 Brian Valente <bvalente@...> ha scritto:
sorry I still don't see a guidelog in there?

image.png

On Tue, Nov 15, 2022 at 12:57 PM Andrea Lucchetti <andlucchett@...> wrote:
I am sorry, try this one:
https://www.dropbox.com/t/DO1UyH8HNE7xvyyG

by the way, the RA rates are noted in the APPC log.
if you take the PHD log and check the raw data, you see a long period oscillation

Thank you
Andrea


--


--


--

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics
Re: PHD??

gmiller2005@...
 

Thank you both Bryan and Brian. The installer you provided worked. I came to the right place once again.
Re: APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Roland Christen
 

Yes, just power up and connect APCC.

Rolando



-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 5:38 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Roland, 
my be I've jumped one post? sorry for that if it is the case.

Regarding the commands: do I need just to power up and connect the mount right?
I don't have the mount with me now, but can answer in 1-2 days.
thank you

Il giorno mer 16 nov 2022 alle ore 00:23 Roland Christen via groups.io <chris1011=aol.com@groups.io> ha scritto:
I guess my post went out into the vapor-sphere and got lost.

Andrea, if you don't mind, please use APCC Terminal mode and type in the following commands. Let me know what the responses are:

$RS#
$RA#
$RN#
$GOS#
$GR#
$GD#

Thanks. It  will go a long way to perhaps explain what might be happening.

Rolando


-----Original Message-----
From: chris1011@...
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Tue, Nov 15, 2022 4:59 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

You attached a picture in your last post. Please explain what this is. Scale, time period, etc.

Rolando

-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 4:06 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Thank you Brian.
if you look at the RA line in the guiding plot you see that is almost always below zero.
The scatter diagram too is not centered.
I am trying to understand if this could be caused by drift, but I am not sure.
I had to increase aggressiveness to try to compensate for this. 
if you click on "drift " on the box you posted, you see that drift in DEC is 0, pol align error is zero, but RA drift is -0.26 arcsec/min.
The same is visible in the plot of raw RA (see photo attached), where you can see the cumulated drift over the 4 hours.
the difference between DEC and RA is clear.

My eccentricity is reported to be 0.55 on average at the center of the field.
This eccentricity is about the same in different nights, sky objects and with different rotation of the camera








Il giorno mar 15 nov 2022 alle ore 22:49 Brian Valente <bvalente@...> ha scritto:
Hi Andrea

Great that worked

Looking at your 4 hour run, your total RMS is 0.45" with RA RMS 0.30" and Dec RMS 0.28". 

this should result in nice tight round stars

it looks pretty good to me. Can you point out what concerns you?


image.png

On Tue, Nov 15, 2022 at 1:30 PM Andrea Lucchetti <andlucchett@...> wrote:
thank you for your patient :-)

Il giorno mar 15 nov 2022 alle ore 22:24 Brian Valente <bvalente@...> ha scritto:
getting closer :)

that is the debug log, i'm looking for the guidelog

if you just want to upload the one file here that would be great


On Tue, Nov 15, 2022 at 1:17 PM Andrea Lucchetti <andlucchett@...> wrote:
I am so sorry. try this last one:
I've verified the link, it should be there.
let me know if it doesn't work
thank you

Il giorno mar 15 nov 2022 alle ore 22:12 Brian Valente <bvalente@...> ha scritto:
sorry I still don't see a guidelog in there?

image.png

On Tue, Nov 15, 2022 at 12:57 PM Andrea Lucchetti <andlucchett@...> wrote:
I am sorry, try this one:
https://www.dropbox.com/t/DO1UyH8HNE7xvyyG

by the way, the RA rates are noted in the APPC log.
if you take the PHD log and check the raw data, you see a long period oscillation

Thank you
Andrea


--


--


--

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics
Re: APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Roland Christen
 

Your second picture is exactly the same as your first.

Rolando



-----Original Message-----
From: Brian Valente <bvalente@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 5:26 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

This view may help some

Pier Side West - this is RA over 4 hours scale is on left +/- 5"

hiccupy-things (flexure, sag, cable snag, mirror flop, seeing, who knows) indicated by small arcs
image.png

Pier Side East - this is RA over 3 hours scale is on the left +/- 5" same  hiccupy-things indication
image.png


On Tue, Nov 15, 2022 at 2:59 PM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
You attached a picture in your last post. Please explain what this is. Scale, time period, etc.

Rolando

-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 4:06 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Thank you Brian.
if you look at the RA line in the guiding plot you see that is almost always below zero.
The scatter diagram too is not centered.
I am trying to understand if this could be caused by drift, but I am not sure.
I had to increase aggressiveness to try to compensate for this. 
if you click on "drift " on the box you posted, you see that drift in DEC is 0, pol align error is zero, but RA drift is -0.26 arcsec/min.
The same is visible in the plot of raw RA (see photo attached), where you can see the cumulated drift over the 4 hours.
the difference between DEC and RA is clear.

My eccentricity is reported to be 0.55 on average at the center of the field.
This eccentricity is about the same in different nights, sky objects and with different rotation of the camera








Il giorno mar 15 nov 2022 alle ore 22:49 Brian Valente <bvalente@...> ha scritto:
Hi Andrea

Great that worked

Looking at your 4 hour run, your total RMS is 0.45" with RA RMS 0.30" and Dec RMS 0.28". 

this should result in nice tight round stars

it looks pretty good to me. Can you point out what concerns you?


image.png

On Tue, Nov 15, 2022 at 1:30 PM Andrea Lucchetti <andlucchett@...> wrote:
thank you for your patient :-)

Il giorno mar 15 nov 2022 alle ore 22:24 Brian Valente <bvalente@...> ha scritto:
getting closer :)

that is the debug log, i'm looking for the guidelog

if you just want to upload the one file here that would be great


On Tue, Nov 15, 2022 at 1:17 PM Andrea Lucchetti <andlucchett@...> wrote:
I am so sorry. try this last one:
I've verified the link, it should be there.
let me know if it doesn't work
thank you

Il giorno mar 15 nov 2022 alle ore 22:12 Brian Valente <bvalente@...> ha scritto:
sorry I still don't see a guidelog in there?

image.png

On Tue, Nov 15, 2022 at 12:57 PM Andrea Lucchetti <andlucchett@...> wrote:
I am sorry, try this one:
https://www.dropbox.com/t/DO1UyH8HNE7xvyyG

by the way, the RA rates are noted in the APPC log.
if you take the PHD log and check the raw data, you see a long period oscillation

Thank you
Andrea


--


--


--

--
Roland Christen
Astro-Physics


--

--
Roland Christen
Astro-Physics
Re: PHD??

Brian Valente
 

Hi Gregory

the PHD website is down right now, it should be back up in a few days. technical difficulties

 



On Tue, Nov 15, 2022 at 3:41 PM <gmiller2005@...> wrote:
Hi all:
Forgive me for asking a question that should be directed to another forum, but I'm reluctant to join yet another forum! Perhaps this is for Brian:
I had a disaster with my laptop last week and had to have a complete re-install of Windows 10. I had all my files backed up, but had to re-install all my programs. I got everything going except PHD2. The website (openphdguiding.org) times out when I attempt to connect, so needless to say, I cant download the program if I can't even access the website. I'm not getting any notifications about my system blocking the website for whatever reason so I'm at a loss.
Any ideas are very much appreciated.

Gregory B. Miller



--

Re: PHD??

Worsel
 

George

The PHD server failed due to a power outage of fair severity and may be out for a while.  https://groups.google.com/g/open-phd-guiding/c/gh_xYB_UHDA


If you want, I have put  2.6-11 installer in

https://www.dropbox.com/s/0mcun0r050sa9nq/phd2-2.6.11-installer.exe?dl=0

Bryan
PHD??

gmiller2005@...
 

Hi all:
Forgive me for asking a question that should be directed to another forum, but I'm reluctant to join yet another forum! Perhaps this is for Brian:
I had a disaster with my laptop last week and had to have a complete re-install of Windows 10. I had all my files backed up, but had to re-install all my programs. I got everything going except PHD2. The website (openphdguiding.org) times out when I attempt to connect, so needless to say, I cant download the program if I can't even access the website. I'm not getting any notifications about my system blocking the website for whatever reason so I'm at a loss.
Any ideas are very much appreciated.

Gregory B. Miller
Re: APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Andrea Lucchetti
 

Roland, 
my be I've jumped one post? sorry for that if it is the case.

Regarding the commands: do I need just to power up and connect the mount right?
I don't have the mount with me now, but can answer in 1-2 days.
thank you

Il giorno mer 16 nov 2022 alle ore 00:23 Roland Christen via groups.io <chris1011=aol.com@groups.io> ha scritto:
I guess my post went out into the vapor-sphere and got lost.

Andrea, if you don't mind, please use APCC Terminal mode and type in the following commands. Let me know what the responses are:

$RS#
$RA#
$RN#
$GOS#
$GR#
$GD#

Thanks. It  will go a long way to perhaps explain what might be happening.

Rolando


-----Original Message-----
From: chris1011@...
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Tue, Nov 15, 2022 4:59 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

You attached a picture in your last post. Please explain what this is. Scale, time period, etc.

Rolando

-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 15, 2022 4:06 pm
Subject: Re: [ap-gto] APPC & Mach2: Dec Arc model results and RA drift connection? #APCC #Mach2GTO

Thank you Brian.
if you look at the RA line in the guiding plot you see that is almost always below zero.
The scatter diagram too is not centered.
I am trying to understand if this could be caused by drift, but I am not sure.
I had to increase aggressiveness to try to compensate for this. 
if you click on "drift " on the box you posted, you see that drift in DEC is 0, pol align error is zero, but RA drift is -0.26 arcsec/min.
The same is visible in the plot of raw RA (see photo attached), where you can see the cumulated drift over the 4 hours.
the difference between DEC and RA is clear.

My eccentricity is reported to be 0.55 on average at the center of the field.
This eccentricity is about the same in different nights, sky objects and with different rotation of the camera








Il giorno mar 15 nov 2022 alle ore 22:49 Brian Valente <bvalente@...> ha scritto:
Hi Andrea

Great that worked

Looking at your 4 hour run, your total RMS is 0.45" with RA RMS 0.30" and Dec RMS 0.28". 

this should result in nice tight round stars

it looks pretty good to me. Can you point out what concerns you?


image.png

On Tue, Nov 15, 2022 at 1:30 PM Andrea Lucchetti <andlucchett@...> wrote:
thank you for your patient :-)

Il giorno mar 15 nov 2022 alle ore 22:24 Brian Valente <bvalente@...> ha scritto:
getting closer :)

that is the debug log, i'm looking for the guidelog

if you just want to upload the one file here that would be great


On Tue, Nov 15, 2022 at 1:17 PM Andrea Lucchetti <andlucchett@...> wrote:
I am so sorry. try this last one:
I've verified the link, it should be there.
let me know if it doesn't work
thank you

Il giorno mar 15 nov 2022 alle ore 22:12 Brian Valente <bvalente@...> ha scritto:
sorry I still don't see a guidelog in there?

image.png

On Tue, Nov 15, 2022 at 12:57 PM Andrea Lucchetti <andlucchett@...> wrote:
I am sorry, try this one:
https://www.dropbox.com/t/DO1UyH8HNE7xvyyG

by the way, the RA rates are noted in the APPC log.
if you take the PHD log and check the raw data, you see a long period oscillation

Thank you
Andrea


--


--


--

--
Roland Christen
Astro-Physics

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