Date   

New file uploaded to ap-gto

ap-gto@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ap-gto
group.

File : /Mach2 and PHD2 guiding with LowPass2 algorithm/Mach2-600secResolution.jpg
Uploaded by : uncarollo2 <chris1011@...>
Description : Resolution of a 10 minute exposure using PHD2 Lowpass2 algorithm and guide exposure of 4 seconds.

You can access this file at the URL:
https://groups.yahoo.com/neo/groups/ap-gto/files/Mach2%20and%20PHD2%20guiding%20with%20LowPass2%20algorithm/Mach2-600secResolution.jpg

To learn more about file sharing for your group, please visit:
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Regards,

uncarollo2 <chris1011@...>


Re: PemPro question

Roland Christen
 

It really doesn't matter if you bin or not. Pempro will ignore the noise component of the seeing. Just run enough cycles to average out the true PE curve if the seeing is not perfect.

Rolando



-----Original Message-----
From: 'Mike Shade' mshade@q.com [ap-gto]
To: ap-gto
Sent: Sat, Jun 1, 2019 8:31 am
Subject: [ap-gto] PemPro question



Have a question about training a PEC curve on my 1600GTO.  Running a Planewave CDK 17/SBIG STL6303E camera.  Unbinned image scale is .63"/pixel.  I have always gathered data binned 1x, and have gathered date near the zenith.  Curious if I might have better data to bin 2x2 (1.26"/pixel)?
 
Anyone have any thoughts or experience on this?  Seeing at my current location tends to run about 2", sometimes a little worse, and sometimes a little better...
 
Still running PP 2.8.
 
Thanks.
 
Mike J. Shade: mshade@q.com
Mike J. Shade Photography:
 
In War: Resolution
In Defeat: Defiance
In Victory: Magnanimity
In Peace: Goodwill
Sir Winston Churchill
Already, in the gathering dusk, a few of the stars are turning on their lights.
Vega, the brightest one, is now dropping towards the west.  Can it be half
a year since I watched her April rising in the east?  Low in the southwest
Antares blinks a sad farwell to fall...
Leslie Peltier, Starlight Nights
 
International Dark Sky Association: www.darksky.org
 



Re: PemPro question

Ray Gralak
 

Hi Mike,

Have a question about training a PEC curve on my 1600GTO.
Running a Planewave CDK 17/SBIG STL6303E camera.
Unbinned image scale is .63"/pixel.
I have always gathered data binned 1x, and have gathered date near the zenith.
Curious if I might have better data to bin 2x2 (1.26"/pixel)?
Either would be okay, but the finer resolution (.63"/pixel) should provide more accurate data for PEMPro to work with.

-Ray Gralak

-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]
Sent: Saturday, June 1, 2019 6:32 AM
To: ap-gto@...
Subject: [ap-gto] PemPro question



Have a question about training a PEC curve on my 1600GTO. Running a Planewave CDK 17/SBIG STL6303E
camera. Unbinned image scale is .63"/pixel. I have always gathered data binned 1x, and have gathered date
near the zenith. Curious if I might have better data to bin 2x2 (1.26"/pixel)?



Anyone have any thoughts or experience on this? Seeing at my current location tends to run about 2",
sometimes a little worse, and sometimes a little better...



Still running PP 2.8.



Thanks.



Mike J. Shade: mshade@q.com

Mike J. Shade Photography:

mshadephotography.com



In War: Resolution

In Defeat: Defiance

In Victory: Magnanimity

In Peace: Goodwill

Sir Winston Churchill

Already, in the gathering dusk, a few of the stars are turning on their lights.

Vega, the brightest one, is now dropping towards the west. Can it be half

a year since I watched her April rising in the east? Low in the southwest

Antares blinks a sad farwell to fall...

Leslie Peltier, Starlight Nights



International Dark Sky Association: www.darksky.org <http://www.darksky.org/>




PemPro question

Mike Shade
 

Have a question about training a PEC curve on my 1600GTO.  Running a Planewave CDK 17/SBIG STL6303E camera.  Unbinned image scale is .63"/pixel.  I have always gathered data binned 1x, and have gathered date near the zenith.  Curious if I might have better data to bin 2x2 (1.26"/pixel)?

 

Anyone have any thoughts or experience on this?  Seeing at my current location tends to run about 2", sometimes a little worse, and sometimes a little better...

 

Still running PP 2.8.

 

Thanks.

 

Mike J. Shade: mshade@q.com

Mike J. Shade Photography:

mshadephotography.com

 

In War: Resolution

In Defeat: Defiance

In Victory: Magnanimity

In Peace: Goodwill

Sir Winston Churchill

Already, in the gathering dusk, a few of the stars are turning on their lights.

Vega, the brightest one, is now dropping towards the west.  Can it be half

a year since I watched her April rising in the east?  Low in the southwest

Antares blinks a sad farwell to fall...

Leslie Peltier, Starlight Nights

 

International Dark Sky Association: www.darksky.org

 


Re: OT: Has my guide camera died?

Christopher Erickson
 

Try a new USB cable before assuming you have a bad camera.

Virus-free. www.avg.com

On Fri, May 31, 2019 at 3:26 PM 'Steven Reilly' sreilly24590@... [ap-gto] <ap-gto@...> wrote:


Mike,

 

If someone hasn’t mentioned yet call Bill Lynch at SBIG Repair  for his advice.

 

Bill Lynch – SBIG Service & Repair Center
(please note new address)
3769 Constellation Road, Unit D
Lompoc, CA  93436
Bill Lynch – email
Phone:  (805) 308-6979

 

Steve

 

 

From: ap-gto@... <ap-gto@...>
Sent: Friday, May 31, 2019 8:55 PM
To: ap-gto@...
Subject: [ap-gto] Re: OT: Has my guide camera died?

 

 

On 5/31/2019 2:29 PM, chris1011@... [ap-gto] wrote:
> Yes, that's happened to me. I finally closed down Maxim and restarted it
> and the problem disappeared. I don't think it's the camera, it happened
> on my Lodestar guider, and that camera has always worked properly.

Thanks, Roland. Sadly, the drifting tracking error has occurred in at
least four imaging sessions, with the observatory powered-off between. I
don't think I restarted MaxIm after I noticed the noise-only guide star
subframe.

I'll keep testing if the sky ever clears....

--- Mike




Virus-free. www.avg.com


Re: OT: Has my guide camera died?

Steve Reilly
 

Mike,

 

If someone hasn’t mentioned yet call Bill Lynch at SBIG Repair  for his advice.

 

Bill Lynch – SBIG Service & Repair Center
(please note new address)
3769 Constellation Road, Unit D
Lompoc, CA  93436
Bill Lynch – email
Phone:  (805) 308-6979

 

Steve

 

 

From: ap-gto@...
Sent: Friday, May 31, 2019 8:55 PM
To: ap-gto@...
Subject: [ap-gto] Re: OT: Has my guide camera died?

 

 

On 5/31/2019 2:29 PM, chris1011@... [ap-gto] wrote:
> Yes, that's happened to me. I finally closed down Maxim and restarted it
> and the problem disappeared. I don't think it's the camera, it happened
> on my Lodestar guider, and that camera has always worked properly.

Thanks, Roland. Sadly, the drifting tracking error has occurred in at
least four imaging sessions, with the observatory powered-off between. I
don't think I restarted MaxIm after I noticed the noise-only guide star
subframe.

I'll keep testing if the sky ever clears....

--- Mike


Re: OT: Has my guide camera died?

Mike Dodd
 

On 5/31/2019 2:29 PM, chris1011@... [ap-gto] wrote:
Yes, that's happened to me. I finally closed down Maxim and restarted it
and the problem disappeared. I don't think it's the camera, it happened
on my Lodestar guider, and that camera has always worked properly.
Thanks, Roland. Sadly, the drifting tracking error has occurred in at least four imaging sessions, with the observatory powered-off between. I don't think I restarted MaxIm after I noticed the noise-only guide star subframe.

I'll keep testing if the sky ever clears....

--- Mike


Re: APCC and AP-V2 with multiple mounts

Stelios
 

Great! I have no intention of using multiple mounts at a time--the 2nd mount is the club's mount. 

Apparently regardless of whether I use APCC or not I will have to change the AP-V2 setup, but I don't expect that to be a problem. (Need to remember to change it back when I try to connect to my Mach1 again!!!)

Thanks for making it so easy and convenient! AP rocks!


Re: APCC and AP-V2 with multiple mounts

Howard Hedlund
 

You are welcome to use APCC on more than one mount, but you should only use it on one mount at a time without another license.  Unless both mounts are operating simultaneously, there is no problem.

The V2 driver can also be used on multiple mounts, but only one at a time on any single computer.   If you have two computers, you can run the driver simultaneously on both mounts.  There is not a licensing issue.

APCC allows you to save configurations for different setups.  You can have both a Mach1 setup and a 900 setup.  Just load the appropriate setup before connecting to the mount.

The driver doesn't allow for multiple setups, so you will need to edit the Telescope Setup dialog before connecting to the driver.  Since APCC is set to auto-connect the driver, you will want to set the driver's Telescope Setup BEFORE you start APCC.  Either George or I will be happy to assist you if needed.


Re: Imaging with PHD2 guiding (Re: New file uploaded to ap-gto)

Roland Christen
 

Hi Stephen,

It turns out that the best way to start the program is to first go to the Guiding Assistant and let it analyze the sky conditions, do a Dec backlash test and other stuff for about 3 - 4 minutes. Do it before twilight is finished and then just let the program set the parameters and start with those settings. Use Lowpass2 algorithm (seems to be the most stable), set Dec guide mode to Auto, set hysteresis to zero in RA, and start from there. See what you get. If Dec doesn't respond right away you can probably safely dial in a small amount of backlash comp, but I would start from zero.

The guiding assistant tells you a lot of good stuff, plus you can see whether you have reasonable polar alignment and whether you have your PEM turned on or not just by seeing the RA tracking while not being guided (takes about 6 - 7 minutes to see one complete worm cycle).

Rolando


Re: Imaging with PHD2 guiding (Re: New file uploaded to ap-gto)

Stephen Winston
 

Some awesome results again, Roland!  It looks like you have found the magic combination of settings for the Mach2 / PHD2 combo.

Once I get decent skies here again in San Jose I'll also be trying those settings with my (non-encoder) Mach1, to see how it compares to the default PHD2 settings.


APCC and AP-V2 with multiple mounts

Stelios
 

I have a Mach1 GTO (CP4) and have purchased APCC (Standard) which I've used with it and love it.


Recently the possibility has come up of connecting a different AP mount (an AP900GTOCP3) to my laptop for imaging.


1) I imagine that APCC Stamdard only allows use of a single AP mount? Therefore I can't use it for the new (to me) AP900? 


2) If true, then I still imagine I can use the free AP-V2 driver to control the 2nd mount. But in such a case, I will need to change the configuration (from Mach1 to AP900 and from CP4 to CP3). If I do that, will it pose a problem when I switch back to APCC (for my Mach1), as APCC auto-starts AP-V2? 


I'd be delighted if someone who has done something similar can address and/or assuage my above concerns.


Imaging with PHD2 guiding (Re: New file uploaded to ap-gto)

Roland Christen
 

Last night was poor transparency (hazy) but with good seeing, so I set out to try PHD2 again, guiding the Mach2 mount with 130GTX scope. I uploaded an image of M101 along with some of the screen shots showing how I set up this program to guide. basically I connected the mount and the guide camera to PHD2 (thru the AP ASCOM driver), started exposing the guider, and opened Guiding Assistant. I let the program take it from there while it calibrated, did a backlash test, set the guide parameters, etc. and then started the guiding. The results can be seen in the top two posted images here:

https://groups.yahoo.com/neo/groups/ap-gto/files/Mach2%20and%20PHD2%20guiding%20with%20LowPass2%20algorithm/

Program works pretty good and if you go this way, it's pretty much hands off, ready to go when you are.
M101 is here:

Rolando


-----Original Message-----
From: ap-gto
To: ap-gto
Sent: Fri, May 31, 2019 1:18 pm
Subject: [ap-gto] New file uploaded to ap-gto

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ap-gto
group.

  File        : /Mach2 and PHD2 guiding with LowPass2 algorithm/M101-0010-0017L3-8bit.tif
  Uploaded by : uncarollo2 <chris1011@...>
  Description : M101 galaxy, 8x600 second exposure 130GTX with Quad TCC
Image taken with PHD guiding at 10 second guide exposures, Mach2 mount, Lodestar off-axis guider.

You can access this file at the URL:

To learn more about file sharing for your group, please visit:

Regards,

uncarollo2 <chris1011@...>


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Re: OT: Has my guide camera died?

Roland Christen
 


In all my years of guiding with MaxIm, I have never witnessed an
instance where the guide star subframe does not contain the selected
star. To me, that points to something in the camera related to the
SUBFRAME not working right.
Yes, that's happened to me. I finally closed down Maxim and restarted it and the problem disappeared. I don't think it's the camera, it happened on my Lodestar guider, and that camera has always worked properly.

Roland


-----Original Message-----
From: Mike Dodd mike@... [ap-gto]
To: ap-gto
Sent: Fri, May 31, 2019 12:37 pm
Subject: [ap-gto] OT: Has my guide camera died?

Suddenly I'm having autoguiding problems with my AP1200 and MaxIm DL
6.19, and I'm wondering if my ST-402 guide camera has gone south.

I asked about this in the MaxIm forum, but I will appreciate any
thoughts or opinions from the experts here as well.

I use a separate 60mm f/5 guide scope with an SBIG ST-402 camera.
Differential flexure is not an issue. This setup has guided the mount
well since 2007, including in my new observatory until a couple of
weeks ago.

The ST-4 autoguider cable is nearly new, and I cleaned with naptha the
contacts on both RJ plugs and the contacts in the mating female sockets
on the camera and the AP1200.

The AP1200 is permanently installed on a 12" concrete pier,
well-aligned. Everything worked fine over the fall and spring.

The problem is that sutoguider corrections aren't applied in one
direction on the X axis, and the MaxIm tracking error graph displays a
gradual drift on that axis. I thought this might be caused by cables
snagging, but after rearranging the pier equipment for no snags, the
drift persists. I can't autoguide at all.

The latest problem is, now the selected guide star does not appear in
MaxIm's guide star subframe after I click Track. That part was working
fine a couple of nights ago, now it isn't.

Specifically: I exposed a full frame with stars visible. I moused-over a
bright star until I found the highest ADU. I clicked that point, and
those coordinates appeared in MaxIm. I clicked Track, and the subframe
appeared. But that subframe contained only noise -- no star!

I repeated this five times with the same result - no guide star in the
subframe. Then I gave up for the night.

Could my ST-402 camera might be malfunctioning? Every autoguider
calibration in MaxIm succeeds, with a perfect L-plot on the full frame,
which tells me the full frame is working and the AP1200 is responding to
all four correction commands. Sound right?

In all my years of guiding with MaxIm, I have never witnessed an
instance where the guide star subframe does not contain the selected
star. To me, that points to something in the camera related to the
SUBFRAME not working right.

What do you think? Time for a new guide camera?

Thanks for all opinions. I'm stumped.

----
Mike

Mike Dodd
Louisa County, Virginia USA


------------------------------------
Posted by: Mike Dodd <mike@...>
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New file uploaded to ap-gto

ap-gto@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ap-gto
group.

File : /Mach2 and PHD2 guiding with LowPass2 algorithm/2019-05-30_2107.png
Uploaded by : uncarollo2 <chris1011@...>
Description : Results of guiding assistance of the Mach2 mount with subsequent guide results at 1 second guide exposures.

You can access this file at the URL:
https://groups.yahoo.com/neo/groups/ap-gto/files/Mach2%20and%20PHD2%20guiding%20with%20LowPass2%20algorithm/2019-05-30_2107.png

To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398

Regards,

uncarollo2 <chris1011@...>


New file uploaded to ap-gto

ap-gto@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ap-gto
group.

File : /Mach2 and PHD2 guiding with LowPass2 algorithm/2019-05-30_2325.jpg
Uploaded by : uncarollo2 <chris1011@...>
Description : 1hour10minute PHD2 guider graph while imaging M101 with 130GTX

You can access this file at the URL:
https://groups.yahoo.com/neo/groups/ap-gto/files/Mach2%20and%20PHD2%20guiding%20with%20LowPass2%20algorithm/2019-05-30_2325.jpg

To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398

Regards,

uncarollo2 <chris1011@...>


New file uploaded to ap-gto

ap-gto@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ap-gto
group.

File : /Mach2 and PHD2 guiding with LowPass2 algorithm/M101-0010-0017L3-8bit.tif
Uploaded by : uncarollo2 <chris1011@...>
Description : M101 galaxy, 8x600 second exposure 130GTX with Quad TCC
Image taken with PHD guiding at 10 second guide exposures, Mach2 mount, Lodestar off-axis guider.

You can access this file at the URL:
https://groups.yahoo.com/neo/groups/ap-gto/files/Mach2%20and%20PHD2%20guiding%20with%20LowPass2%20algorithm/M101-0010-0017L3-8bit.tif

To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398

Regards,

uncarollo2 <chris1011@...>


OT: Has my guide camera died?

Mike Dodd
 

Suddenly I'm having autoguiding problems with my AP1200 and MaxIm DL 6.19, and I'm wondering if my ST-402 guide camera has gone south.

I asked about this in the MaxIm forum, but I will appreciate any thoughts or opinions from the experts here as well.

I use a separate 60mm f/5 guide scope with an SBIG ST-402 camera. Differential flexure is not an issue. This setup has guided the mount well since 2007, including in my new observatory until a couple of weeks ago.

The ST-4 autoguider cable is nearly new, and I cleaned with naptha the contacts on both RJ plugs and the contacts in the mating female sockets on the camera and the AP1200.

The AP1200 is permanently installed on a 12" concrete pier, well-aligned. Everything worked fine over the fall and spring.

The problem is that sutoguider corrections aren't applied in one direction on the X axis, and the MaxIm tracking error graph displays a gradual drift on that axis. I thought this might be caused by cables snagging, but after rearranging the pier equipment for no snags, the drift persists. I can't autoguide at all.

The latest problem is, now the selected guide star does not appear in MaxIm's guide star subframe after I click Track. That part was working fine a couple of nights ago, now it isn't.

Specifically: I exposed a full frame with stars visible. I moused-over a bright star until I found the highest ADU. I clicked that point, and those coordinates appeared in MaxIm. I clicked Track, and the subframe appeared. But that subframe contained only noise -- no star!

I repeated this five times with the same result - no guide star in the subframe. Then I gave up for the night.

Could my ST-402 camera might be malfunctioning? Every autoguider calibration in MaxIm succeeds, with a perfect L-plot on the full frame, which tells me the full frame is working and the AP1200 is responding to all four correction commands. Sound right?

In all my years of guiding with MaxIm, I have never witnessed an instance where the guide star subframe does not contain the selected star. To me, that points to something in the camera related to the SUBFRAME not working right.

What do you think? Time for a new guide camera?

Thanks for all opinions. I'm stumped.

----
Mike

Mike Dodd
Louisa County, Virginia USA
http://astronomy.mdodd.com


Re: 1600 worm cycle

mogollonobs
 

Hello Mike,

I believe the cycle is 6.4 minutes.

Keith


Re: Quick update on testing the Mach2 imaging and the Stowaway visual

Dean Jacobsen
 


---In ap-gto@..., <chris1011@...> wrote :

Rolando wrote:

I can't wait to get some of these mounts out in the hands of you amateurs. Whether beginner or expert, you will find this mount to be the cat's.

@Rolando,

Well, I have been planning on getting one for the observatory to replace my 2009 AP900 [even though the 900 works perfectly].  So, ... hurry up!  ;-)

Dean Jacobsen