Date   

Re: Point Mapping Strategies for the Mobile Imager

Terri Zittritsch
 

On Mon, Jun 15, 2020 at 09:16 AM, Worsel wrote:
Terri

Which of the plate-solving options within SGP are you using?  I know the APPC Pro manual suggests PlatSolve2 form Planewave, but ASTAP is much faster.  A local install of astrometry.net is nearly as fast.  Obviously there is a learning curve with both, but once configured, they are good to go.

Bryan
Hy Bryan, thanks for your response.     I use platesolve2 as my base, but have a local copy of astrometry.net for blind solving as well.     I have not tried Astrometry.net outside of using it with SGPro and blind solving.     I've not tried ASTAP either but I'll look into it, thank you for the pointer!

Terri


Re: Point Mapping Strategies for the Mobile Imager

Dean Jacobsen
 

Konstantin:  That is good to know.

Terri:  I have use of a permanent pier at a roll-of-roof observatory 100 miles away at the club's dark sky site but I tear down the mount and bring everything home.  I don't leave my gear out there.

Yes, I am using the ASI1600.  It took me about 30 minutes to do a 68 point all sky mapping run the other night with Sequence Generator Pro and using PlateSolve2.  The imaging and the plate solving ran pretty quick.  4 seconds for the exposure and plate solves were usually done within another 4 or 5 seconds.  So it looks like I am averaging less than 30 seconds for each point, including slewing.

So, I was very happy with the tracking I got using a 68 point all sky map.  However, I am wondering if I can get even tighter tracking accuracy if I run a more dense map that is focused on the specific path my object for that night will take.
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Sky Safari with Mach2

Terri Zittritsch
 

On Sun, Jun 14, 2020 at 10:29 AM, Dominique Durand wrote:
Hi Terri,
I noticed the same thing and I have already reported it, without the Mach2 connected to the PC (APCC and / or driver), with skysafari connected to the CP5 you can only move the mount with the arrows, synchronization does not happen not and the Goto of course either.
Thanks Dominique, have you gotten any feedback from A-P or Simulation Curriculum?    I was wondering if it's normal, per past correspondence I've read about needing some initialization.  I know Sky Safari has a switch to pass time/location, but not sure that this does the trick.  I guess I'll wait to hear.  
I am an early adopter of Sky Safari and had every version since the beginning..  it is my favorite sky mapping program so hope that it'll be usable on the Mach2.    Maybe after getting the hand control sw.

T


Re: Point Mapping Strategies for the Mobile Imager

Worsel
 

Terri

Which of the plate-solving options within SGP are you using?  I know the APPC Pro manual suggests PlatSolve2 form Planewave, but ASTAP is much faster.  A local install of astrometry.net is nearly as fast.  Obviously there is a learning curve with both, but once configured, they are good to go.

Bryan


Re: Sky Safari with Mach2

ernie.mastroianni@...
 

When I took delivery of my Mach2 without the handset keypad, I did not yet have a PC computer. So I tried using the mount with my Sky Safari program. I could move the mount with the arrows but that was all. Surprisingly, I could do this with a very old iPad and an equally vintage version of Sky Safari Pro.

Bad idea. Once I had access to a PC with APCC and the proper drivers, the 3D view window revealed that the mount thought it was pointing at 63 degrees declination and counterweight up, even though it was physically it was in Park 3. This was fixed after I established the Home position as Park 3. Many thanks to the excellent Astro-Physics crew for their extensive assistance on this issue.

In the Sky Safari program, under "Telescope Setup" Astro-Physics GTO mounts are among the many listed, but the brand-new Mach2 does not yet fully work with this setting. My understanding is that Sky Safari is working to update the program, but I don't know the current status of this work. I think there are initialization issues. Bear in mind that I am a novice with Astro-Physics gear and PC computers. I used Macs exclusively as a photographer and photo editor for newspapaers and magazines. My previous mount was a push-to Losmandy, purchased in 1994.

For now, I'm not connecting Sky Safari to the Mach2. The mount itself runs smoothly and accurately with APCC and TheSky. I use the PC computer to nudge the scope to the proper position when doing calibrations and star syncs with my various telescopes and cradles. I am certainly looking forward to the delivery of the handset.

Ernie


Re: Point Mapping Strategies for the Mobile Imager

Terri Zittritsch
 

Hey Dean, I've noticed you use the ASI1600 camera as I do.     What program do you use for capturing and how long is your point mapping taking?   I'm asking because I'm curious about your efficiency and how long it takes.    For some reason, I thought you were using an observatory setup.. but I see you're mobile like me.    I'm curious as to the results of what you're talking about here.    2 line mapping, does this mean like 2 rows or points on a dec line along RA?   I see you have 4 rows on the picture above.   

For me, I have to wait till it's dark enough to use my  polemaster to polar align, although I'm sure I could go earlier with the RAPAS.   So this doesn't allow me to even start to point map until maybe 9:45pm or so in Vermont.     From memory, the last time I tried a model, it took me 35 minutes to do what was called a 'small model' of around 30 points.     I used it more or less as a test.   And I'm using SGPro for my plate solving.   For whatever reason, its efficiency for imaging is not great, and what I mean by this is how much overhead is taken by downloads and other control signaling..    So even though my plate solves, after the first, happen with the first plate searched, it's still slow.    If I had a 60 point model, it would take maybe 60+ minutes.     So for the most part, I haven't even bothered doing more modeling.    

So I am interested in what others use for capture/plate solving to maybe improve my overall efficiency.    Clear skies are scarce for me this time of year.  Last night I setup, polar aligned, plate solved, and then what seemed like a Vermont shaped cloud came over and ended my night without a single imaging frame captured.

Best,
Terri






   


Re: Point Mapping Strategies for the Mobile Imager

Konstantin von Poschinger
 

Hi,

I have done that with a two line mapping. Worked fine. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 15.06.2020 um 06:36 schrieb Dean Jacobsen <deanjacobsen@...>:

Forgive me if this has been covered before...

I set up my mount each session.  Get an accurate polar alignment, etc.

I want to incorporate APCC's tracking rate correction and do unguided imaging whenever I can.

When I set up I always know the object that I am going to image and I never start before 45 degrees elevation in the east and never go past 45 degrees down the western side.

I always do just one object a night and park on the object for about 6 hours if I can.

So, the question is... Do I need to set up a whole sky APPM mapping run when I know the declination and the path that tonight's object will be taking?

For instance, if my object is at 0 degrees declination, then can I just do a dense APPM run that brackets 0 degrees? 

The image below is a screen shot of what I was thinking of for a 0 degree declination object:

<dummyfile.0.part>


--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Point Mapping Strategies for the Mobile Imager

Dean Jacobsen
 

Forgive me if this has been covered before...

I set up my mount each session.  Get an accurate polar alignment, etc.

I want to incorporate APCC's tracking rate correction and do unguided imaging whenever I can.

When I set up I always know the object that I am going to image and I never start before 45 degrees elevation in the east and never go past 45 degrees down the western side.

I always do just one object a night and park on the object for about 6 hours if I can.

So, the question is... Do I need to set up a whole sky APPM mapping run when I know the declination and the path that tonight's object will be taking?

For instance, if my object is at 0 degrees declination, then can I just do a dense APPM run that brackets 0 degrees? 

The image below is a screen shot of what I was thinking of for a 0 degree declination object:



--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Old Keypad Repair/Refurbishing

Steven Panish
 

Thanks Joe.  Good info on membrane keypads that I didn't know.  It goes in the mental armory.

Steve

On Sun, Jun 14, 2020 at 12:51 PM Joe Zeglinski <J.Zeglinski@...> wrote:
Dean,
 
    You may be able to fix keypad buttons which are no longer working,  by simply “washing the back of the keypad membrane” with dish soap, and finishing up with Isopropyl.
 
    I have fixed several TV Remote’s  and cordless phones, suffering from some  sticky key positions, over the years.
The carbon coated circuit board contact points (in the rubber) under each key position eventually gets so oily, from the rubber pad’s gradually leaching out its remaining, imbedded  “mould release agent”, that the entire circuit board’s, printed circuit copper contacts get coated, and you are pressing down on a film of oil. Then the  key doesn’t close its corresponding circuit. The most heavily used numbers or function keys on any hand controller  exude the most oil under them, from such continual pressing, and eventually the entire circuit board copper contacts under them,  become quite slimy.
 
    So, the best time to fix sticky buttons is when you have the Handpad open for a battery change. Examine or touch the circuit board to check the “oily level”.
 
    If there seems to be any, then I would (carefully) slip out the keypad membrane from it top cover and give it a good  basin-wash with something like DOVE pure dish soap which we use for telescope mirrors, That will also wash away years or decades of dirty fingerprints and dust on the membrane top surface, causing keys to stick to the similarly dirty hole edges.
 
    Finish up with Isopropanol alcohol (99% pure is best) to clean-up of any remaining soap residue, and pat dry the circuit board and the membrane’s underside, before replacing. Then the button(s) should make better contact closures to the circuit pad position.
 
    Haven’t done this on my two AP Handpads yet, because I use them so rarely that they haven’t squeezed out much oily agent yet,  but have done the fix on similar device hand controllers around the house.
Perhaps Roland can chime in on my repair method for balky HC’s.
 
Hope this helps.
Joe Z.
 
 
From: Dean Jacobsen
Sent: Sunday, June 14, 2020 10:46 AM
To: main@ap-gto.groups.io
Subject: [ap-gto] Old Keypad Repair/Refurbishing
 
I am wondering to what extent the fine folks at Astro-Physics can refurbish older model keypads.

I have an older one that I got in 2005 with my 1200GTO, the serial number is 1652GTO.

Two years ago various buttons started getting flaky so I though it would be nice to get a new keypad as my primary keypad and I put this one in the box as a backup.

Now I am getting my AP900 ready to sell and I was going to include the old keypad in the bundle if I can get it working right.

I have replaced the battery and reloaded the battery, re-loaded the database and have uploaded the latest firmware.  However, the keypad sometimes locks up on initialization as I am trying to enter in location and park position data.  Maybe this is because of the buttons not working properly or something is wrong with the new firmware.

Is this keypad a lost cause because it just doesn't have the horsepower to run the latest firmware or can a new button module be fitted and the keypad be revived? 
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/


Re: Old Keypad Repair/Refurbishing

Joe Zeglinski
 

Dean,
 
    You may be able to fix keypad buttons which are no longer working,  by simply “washing the back of the keypad membrane” with dish soap, and finishing up with Isopropyl.
 
    I have fixed several TV Remote’s  and cordless phones, suffering from some  sticky key positions, over the years.
The carbon coated circuit board contact points (in the rubber) under each key position eventually gets so oily, from the rubber pad’s gradually leaching out its remaining, imbedded  “mould release agent”, that the entire circuit board’s, printed circuit copper contacts get coated, and you are pressing down on a film of oil. Then the  key doesn’t close its corresponding circuit. The most heavily used numbers or function keys on any hand controller  exude the most oil under them, from such continual pressing, and eventually the entire circuit board copper contacts under them,  become quite slimy.
 
    So, the best time to fix sticky buttons is when you have the Handpad open for a battery change. Examine or touch the circuit board to check the “oily level”.
 
    If there seems to be any, then I would (carefully) slip out the keypad membrane from it top cover and give it a good  basin-wash with something like DOVE pure dish soap which we use for telescope mirrors, That will also wash away years or decades of dirty fingerprints and dust on the membrane top surface, causing keys to stick to the similarly dirty hole edges.
 
    Finish up with Isopropanol alcohol (99% pure is best) to clean-up of any remaining soap residue, and pat dry the circuit board and the membrane’s underside, before replacing. Then the button(s) should make better contact closures to the circuit pad position.
 
    Haven’t done this on my two AP Handpads yet, because I use them so rarely that they haven’t squeezed out much oily agent yet,  but have done the fix on similar device hand controllers around the house.
Perhaps Roland can chime in on my repair method for balky HC’s.
 
Hope this helps.
Joe Z.
 
 

From: Dean Jacobsen
Sent: Sunday, June 14, 2020 10:46 AM
To: main@ap-gto.groups.io
Subject: [ap-gto] Old Keypad Repair/Refurbishing
 
I am wondering to what extent the fine folks at Astro-Physics can refurbish older model keypads.

I have an older one that I got in 2005 with my 1200GTO, the serial number is 1652GTO.

Two years ago various buttons started getting flaky so I though it would be nice to get a new keypad as my primary keypad and I put this one in the box as a backup.

Now I am getting my AP900 ready to sell and I was going to include the old keypad in the bundle if I can get it working right.

I have replaced the battery and reloaded the battery, re-loaded the database and have uploaded the latest firmware.  However, the keypad sometimes locks up on initialization as I am trying to enter in location and park position data.  Maybe this is because of the buttons not working properly or something is wrong with the new firmware.

Is this keypad a lost cause because it just doesn't have the horsepower to run the latest firmware or can a new button module be fitted and the keypad be revived? 
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/


Re: Last night tracking with Mach2

Worsel
 

Roland

A creative approach!  What scope were you using for this...17.5 or 130 or ??

Bryan

----
You can set up the model ahead of time, during twilight, and do it on both sides of the mount. I set up my model 2 hours before sunset using Ha filter on my camera with exposures of .03 seconds. I could easily capture stars down to mag4.5. I would not take up precious clear sky imaging time to establish a model at night.
 
Roland
----


Re: Last night tracking with Mach2

Worsel
 

Tony

AFAIK, it is a bit more complex.  For a non-AE, non-HC mount, you also need one of the imaging apps and one of the plate-solving apps listed in Section 15 of https://www.astro-physics.info/tech_support/software/apcc/apcc-pro.pdf


Bryan


Re: help with AP900 guiding via ASIAir Pro

Worsel
 

The guiding software in the ASIAir is based on PHD2, which is open source, but not all of the functions in PHD2 are available in the ZWO version.  If you switch to PHD2, then you seek support on the PHD2 forum, which cannot support the ZWO version.

Bryan


Old Keypad Repair/Refurbishing

Dean Jacobsen
 

I am wondering to what extent the fine folks at Astro-Physics can refurbish older model keypads.

I have an older one that I got in 2005 with my 1200GTO, the serial number is 1652GTO.

Two years ago various buttons started getting flaky so I though it would be nice to get a new keypad as my primary keypad and I put this one in the box as a backup.

Now I am getting my AP900 ready to sell and I was going to include the old keypad in the bundle if I can get it working right.

I have replaced the battery and reloaded the battery, re-loaded the database and have uploaded the latest firmware.  However, the keypad sometimes locks up on initialization as I am trying to enter in location and park position data.  Maybe this is because of the buttons not working properly or something is wrong with the new firmware.

Is this keypad a lost cause because it just doesn't have the horsepower to run the latest firmware or can a new button module be fitted and the keypad be revived? 
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Sky Safari with Mach2

Dominique Durand
 

Hi Terri,
I noticed the same thing and I have already reported it, without the Mach2 connected to the PC (APCC and / or driver), with skysafari connected to the CP5 you can only move the mount with the arrows, synchronization does not happen not and the Goto of course either.


Sky Safari with Mach2

Terri Zittritsch
 

So I've been searching to answers to my question, but since the Mach2 CP5 is so new, maybe I should ask here.   I think I know the answer, but will throw it out anyway.

I've been trying to use sky safari with the mach2.   I can connect, via wifi easily once I knew the address of the controller on my network.  For those of you who have lots of wifi connects, like us, the CP5 shows as 'Sychip' on my wifi versus the myriad of other things that show up.  It's the only sychip on my system.       So it connects, and seems to know it's pointed at the pole.   I do have (send time location checked) in sky safari.   But the only thing it will do, is allow manual slewing with the buttons in sky safari, but the screen doesn't show the mount slewing, so it's not getting updated coordinates.     I have a feeling this is because it needs 'initialization'.. the AP term, for setting the controller time, location and it seems sky safari does not do this.   So I think I need either a computer connected (kind of defeats the purpose) or the hand controller (sw coming) in order to initialize first.   I see this mentioned in a few posts elsewhere for older controllers.  Can anyone confirm that the same is true for the CP5?      


Terri


Re: APCC and APPM is amazing

Barry Megdal
 

Interesting comment about a reflection – can you provide more detail?

 

Thanks

 

-        Barry

 

Dr. Barry Megdal

 

President

Shb Instruments, Inc.

19215 Parthenia St.  Suite A

Northridge, CA 91324

www.shbinstruments.com

(818) 773-2000  (818)773-2005 fax

bmegdal@...

 

Faculty (retired)

Dept. of Electrical Engineering

Caltech

 


Re: AP1100GTO PEC/PEM

 

afaik you have to use PEMPro


On Sat, Jun 13, 2020 at 9:53 PM Khushrow Machhi via groups.io <kmachhi=yahoo.com@groups.io> wrote:
Can I generate a PEC curve using TheSKyX for the AP1100GTO or do I have to use PEMPRO?

Thanks,
Khushrow



--
Brian 



Brian Valente


AP1100GTO PEC/PEM

Khushrow Machhi
 

Can I generate a PEC curve using TheSKyX for the AP1100GTO or do I have to use PEMPRO?

Thanks,
Khushrow


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

Dean Jacobsen
 

Small refractors and the small pixel CMOS cameras = a lot of fun.
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 

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