Date   

Re: Setting Daylight Savings Time Using ASCOM V2 Driver

Wendelin Burkhardt
 

Dale,

I don't have APCC on my system. I wrote some programs that control the operation of the mount, scope and camera through the ASCOM driver. Since the time change, and because I have been lazy, I didn't update the CP4 to reflect standard time rather than Daylight Savings time. This has caused a couple of mostly annoyances. First, the mount thinks that all stars in the west are at lower altitude than they actually are. This causes the code to abort a photo if the star is too low on the horizon. The code I have written also reports back the altitude at which an exposure starts and ends. These are incorrect as well, which impacts any star intensity corrections that get performed later. If I could change the daylight savings time switch with software, it would simplify things greatly (as well as making sure that I don't forget to do this manually which usually happens).

-----Original Message-----
From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Dale Ghent
Sent: Wednesday, December 16, 2020 11:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Setting Daylight Savings Time Using ASCOM V2 Driver



On Dec 16, 2020, at 13:59, Wendelin Burkhardt <wendelb@pacbell.net> wrote:

Is there a way to set Daylight savings time or standard time using the ASCOM driver? I know this can be done using the Keypad, but I usually don’t have it connected to the mount. Software that I have written to control the mount has altitude limits in it and I have noticed that since we switched back to standard time the mount thinks the objects are lower in the sky than they actually are.
GMT offsets are automagically handled by the driver/APCC. Your computer having an up to date timezone database is how is the is possible, where maintaining such a thing on the keypad is impractical.

/dlae


Re: CP4 vs CP2 motor stalls?

Tom Blahovici
 

All firmware is up to date and all power supplies etc are the same as previously with my CP2.  I will lower the slewing speed which I think is at 600.
Thanks, Tom


Re: CP4 vs CP2 motor stalls?

Christopher Erickson
 

There are some safety limits in the CP4 that could have a bug in some firmware revs that look like a motor stall but aren't. Make sure to be using the latest firmware rev.

-Christopher Erickson
Observatory engineer
Waikoloa, HI 96738
www.summitkinetics.com
   

On Thu, Dec 17, 2020, 5:52 AM <michaeljhanson@...> wrote:
Hi Tom,

There are several things you can look at:
- Do you know what version of CP4 software you have?  There have been a few changes related to stall over the years.
- Are you using the same power source as you did with the CP2?  And, is that power source adjustable? It is possible that a little higher input voltage will help the system to maintain the slew speed.
- Is the CP4 slewing at the same rate as the CP2?  The slew rate can be reduced to reduce stall occurrences at a given input voltage.
- Gear mesh can have a dramatic affect on the motor loading, make sure it's not too tight. See  600EGTO - Adjustments to Remove Worm Gear Backlash,
 at https://astro-physics.info/index.htm?tech_support/tech_support_legacy.  It also discussed mesh.

Regards,
Mike Hanson


Re: CP4 vs CP2 motor stalls?

michaeljhanson@...
 

Hi Tom,

There are several things you can look at:
- Do you know what version of CP4 software you have?  There have been a few changes related to stall over the years.
- Are you using the same power source as you did with the CP2?  And, is that power source adjustable? It is possible that a little higher input voltage will help the system to maintain the slew speed.
- Is the CP4 slewing at the same rate as the CP2?  The slew rate can be reduced to reduce stall occurrences at a given input voltage.
- Gear mesh can have a dramatic affect on the motor loading, make sure it's not too tight. See  600EGTO - Adjustments to Remove Worm Gear Backlash,
 at https://astro-physics.info/index.htm?tech_support/tech_support_legacy.  It also discussed mesh.

Regards,
Mike Hanson


CP4 vs CP2 motor stalls?

Tom Blahovici
 

Hi
I frequently image during cold temperatures with my AP600.  A few months ago I updated to a CP4 from a CP2. Two days ago, the temperature was -12C and I received two motor stalls during slewing. In the past I could work at -25C and never got motor stalls. I have low temperature grease in the mount as per APs recommendations.
Is there away I can minimize this occurance?
Thanks.


Re: Loss of connection from APCC Pro to other applications

Worsel
 

Thanks, Brian.  I will implement that now!

Bryan


Re: Loss of connection from APCC Pro to other applications

 

Hi Bryan

I find UDP is not reliable enough for guiding and related apps. i switched to TCP and it cleared right up

On Wed, Dec 16, 2020 at 7:18 PM Worsel via groups.io <bryancashion=yahoo.com@groups.io> wrote:
APCC Pro and V2 Driver lose connection to the mount, which means Cartes du Ciel and PHD2 lose connection.  This has occurred unpredictably. 

The mount continues to track, but the lack of guiding is just enough to throw off the images. 

Closing and re-starting APCC allows re-connection to CdC and PHD2 easily.  However, I finally got tired of the hassle and am seeking insight.

Zipped logs attached.  The problem occurs in the the APCC log at step 0341671 time stamp 2020-12-16  19:23:20.100

I typically run starting with an object in the east, CW up so I can image for several hours without a flip.

1100 (non-AE) with a CP4, no hand control.  Connection via Ethernet (UDP).  This has occurred both before and after APPM model implementation (which works great!).  I have checked the Cat 5e cable several times and cleaned the contacts with electrical contact solvent.

Let me know if other info would be helpful.

Bryan



--
Brian 



Brian Valente


Loss of connection from APCC Pro to other applications

Worsel
 

APCC Pro and V2 Driver lose connection to the mount, which means Cartes du Ciel and PHD2 lose connection.  This has occurred unpredictably. 

The mount continues to track, but the lack of guiding is just enough to throw off the images. 

Closing and re-starting APCC allows re-connection to CdC and PHD2 easily.  However, I finally got tired of the hassle and am seeking insight.

Zipped logs attached.  The problem occurs in the the APCC log at step 0341671 time stamp 2020-12-16  19:23:20.100

I typically run starting with an object in the east, CW up so I can image for several hours without a flip.

1100 (non-AE) with a CP4, no hand control.  Connection via Ethernet (UDP).  This has occurred both before and after APPM model implementation (which works great!).  I have checked the Cat 5e cable several times and cleaned the contacts with electrical contact solvent.

Let me know if other info would be helpful.

Bryan


Re: mach 2 guider settings in Skyx camera add on

Roland Christen
 

Yes, guide speed always at 1x.

Roland



-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Wed, Dec 16, 2020 3:28 pm
Subject: Re: [ap-gto] mach 2 guider settings in Skyx camera add on

hi Roland,
my exposure is set from 3 to 5s.
Guide speed 1x, right?
I will try 0.03 next time, thanks a lot!
Andrea

--
Roland Christen
Astro-Physics


Re: mach 2 guider settings in Skyx camera add on

Andrea Lucchetti
 

hi Roland,
my exposure is set from 3 to 5s.
Guide speed 1x, right?
I will try 0.03 next time, thanks a lot!
Andrea


Re: Setting Daylight Savings Time Using ASCOM V2 Driver

Dale Ghent
 

On Dec 16, 2020, at 13:59, Wendelin Burkhardt <wendelb@pacbell.net> wrote:

Is there a way to set Daylight savings time or standard time using the ASCOM driver? I know this can be done using the Keypad, but I usually don’t have it connected to the mount. Software that I have written to control the mount has altitude limits in it and I have noticed that since we switched back to standard time the mount thinks the objects are lower in the sky than they actually are.
GMT offsets are automagically handled by the driver/APCC. Your computer having an up to date timezone database is how is the is possible, where maintaining such a thing on the keypad is impractical.

/dlae


Setting Daylight Savings Time Using ASCOM V2 Driver

Wendelin Burkhardt
 

Is there a way to set Daylight savings time or standard time using the ASCOM driver?  I know this can be done using the Keypad, but I usually don’t have it connected to the mount.  Software that I have written to control the mount has altitude limits in it and I have noticed that since we switched back to standard time the mount thinks the objects are lower in the sky than they actually are.

 

 


Re: Using other side of right ascension drive gear

Roland Christen
 

New Setup - Resume from Park3.

Rolando



-----Original Message-----
From: M Hambrick <mhambrick563@...>
To: main@ap-gto.groups.io
Sent: Tue, Dec 15, 2020 10:37 pm
Subject: Re: [ap-gto] Using other side of right ascension drive gear

Thanks for asking this Stacey, and thanks for the answer Roland. I was just literally just thinking about asking the same question myself.

For clarification, when you say to Resume from Park 3 do you mean Resume from Last Position as if the mount was shut down in Park 3,  or are you referring to the instructions for New setup start from Park 1,2,3 or 4 ? (I am looking at page 15 of the V19.3 Keypad Manual).

--
Roland Christen
Astro-Physics


Re: Using other side of right ascension drive gear

Ray Gralak
 

Thanks. I assume this can be done using APCC instead of the keypad?
Yes, or using the AP V2 ASCOM driver, if you follow a similar procedure.

-Ray Gralak
Author of PEMPro
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver


-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Stacey Mills
Sent: Wednesday, December 16, 2020 6:36 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Using other side of right ascension drive gear

Thanks. I assume this can be done using APCC instead of the keypad?


Re: Using other side of right ascension drive gear

Stacey Mills
 

Thanks.  I assume this can be done using APCC instead of the keypad?


Re: Using other side of right ascension drive gear

M Hambrick
 

Thanks for asking this Stacey, and thanks for the answer Roland. I was just literally just thinking about asking the same question myself.

For clarification, when you say to Resume from Park 3 do you mean Resume from Last Position as if the mount was shut down in Park 3,  or are you referring to the instructions for New setup start from Park 1,2,3 or 4 ? (I am looking at page 15 of the V19.3 Keypad Manual).


Re: Using other side of right ascension drive gear

Roland Christen
 

1) set the keypad to Autoconnect NO
2) park the mount to Park1, 4 or 5.
3) loosen clutches and rotate both axes manually until the scope points to Park3.
4) tighten the clutches and cycle power
5) when prompted, choose Resume from Park3.

This will rotate the gear 90 degrees. You can repeat again if you want to go the full 180 degrees.

Rolando.



-----Original Message-----
From: Stacey Mills <w4sm@...>
To: main@ap-gto.groups.io
Sent: Tue, Dec 15, 2020 8:20 pm
Subject: [ap-gto] Using other side of right ascension drive gear

A couple of years ago at NEAIC I heard someone, I think it was George, describe how to rotate the right ascension gear 180 deg so that it wears evenly on the opposite side.  I have an A-P 1600 mount with encoders.  Is this written down somewhere in a step by step format?  I'd like to do it and not have to do a lot of realigning.  Thanks!

--
Roland Christen
Astro-Physics


Using other side of right ascension drive gear

Stacey Mills
 

A couple of years ago at NEAIC I heard someone, I think it was George, describe how to rotate the right ascension gear 180 deg so that it wears evenly on the opposite side.  I have an A-P 1600 mount with encoders.  Is this written down somewhere in a step by step format?  I'd like to do it and not have to do a lot of realigning.  Thanks!


Re: mach 2 guider settings in Skyx camera add on

Roland Christen
 

You can reduce the Min Move to .03 or even .02 unless you have very poor seeing. I have used .01 in excellent seeing. What is your guide exposure? I use 5 seconds most nights, no need to go faster. I use these same settings in MaximDL.

Rolando



-----Original Message-----
From: Andrea Lucchetti <andlucchett@...>
To: main@ap-gto.groups.io
Sent: Tue, Dec 15, 2020 4:32 pm
Subject: [ap-gto] mach 2 guider settings in Skyx camera add on

Hello,
I wonder if someone can share a good set up for guiding the Mach 2 with Skyx camera addon.
Maxim or other software as alternatives.

currently I have:
-minimum move: 0.051 sec
-max move: 0.199 sec
-aggressiveness: 8
-method: pulse guide
-delay after correction:0
-simultaneous corrections: yes

thank you very much,
Andrea

--
Roland Christen
Astro-Physics


mach 2 guider settings in Skyx camera add on

Andrea Lucchetti
 

Hello,
I wonder if someone can share a good set up for guiding the Mach 2 with Skyx camera addon.
Maxim or other software as alternatives.

currently I have:
-minimum move: 0.051 sec
-max move: 0.199 sec
-aggressiveness: 8
-method: pulse guide
-delay after correction:0
-simultaneous corrections: yes

thank you very much,
Andrea

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