Date
1 - 20 of 20
Problem with pointing model
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David Johnson
I’m trying to generate a pointIng model. I’ve done this before with no problem, but I have a new computer, and I’m having issues. Please see the attached. What are these RA (topo) and Dec (topo)? They are what are giving me ridiculously large errors. The RA and Dec values above them are. Sorry I don’t have time for more explanation, but I’’m freezing out here. Thanks.
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David Johnson
Well, I restarted APCC, and now it’s working fine. Not sure what the problem was.
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David Johnson
I took the check mark off of “Precess J2000 to JNow”, and that seems to have fixed the problem. I wish I could claim that I completely understand why that fixed the problem, but I don’t.
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David Johnson
I’m also having problems getting the pointing model into APCC. On the other computer, when APPM was done, it would ask me if I want to import the model in APCC, and it seemed to do it with little problem. Now, everything seems to lock up. I can still move the windows around, but all the AP software (APCC, APPM) is unresponsive. See attached.
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David Johnson
Well, I guess I’m going to lose a clear night. I’ve tried restarting the mount, restarting the computer (numerous times), and even reinstalling APCC. Now, I can’t do anything. I did an unpack, and then when I tried to do a Park 3, I get the attached. Neither APCC nor the ASCOM drive will respond. The driver doesn’t seem to know where the telescope is. Even if I restart the computer, I get the same problem.
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Ray Gralak
Hi David,
What are these RA (topo) and Dec (topo)? They are what are giving meNo... the error values have nothing to do with the RA/Dec (topo). Plate solve solutions return coordinates in J2000.0 coordinates, which roughly means where the stars were at the beginning of the year 2000. Because of precession those coordinates need to be precessed to where they actually are today. That is the RA/Dec topo coordinates. The error values are the delta between the mount coordinates and the plate solve coordinates. It might have just been a bad plate solve. -Ray -----Original Message----- |
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Ray Gralak
I took the check mark off of “Precess J2000 to JNow”, and that seems to have fixed the problem. I wish I couldI don't think that had anything to do with whatever issue you thought it fixed. Is this the first time you used the mount after the time change? Try homing the mount in APCC. -Ray -----Original Message----- |
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Ray Gralak
I can't see APCC's panel because it looks like you tried to shrink APCC's window much smaller.
I’m also having problems getting the pointing model into APCCDid you try loading a bad APPM model? That can cause really wild calculations, which the driver is going to reject, which explains the blank fields. -Ray -----Original Message----- |
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David Johnson
The check mark for J2000 to JNow definitely does make a difference. When it’s checked, my errors when using APPM are huge. If I uncheck it, they go way down to normal values. Also, APCC still locks up when I try to load a pointing model into it every time. Even simple models. See attached.
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David Johnson
It shrunk itself and is locked up. It happens every time I try to move a pointing model into APCC.
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Ray Gralak
It shrunk itself and is locked up. It happens every time I try to move a pointing model into APCC.I can't explain why APPM would shrink itself in that case, but it seems like the model you loaded is bad. Can you attach it to post here so I can take a look? (Or email me privately). -Ray -----Original Message----- |
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David Johnson
Okay, this shows the effect of the JNow check box. Here are results with it checked. Note that RA Solved and Dec Solved don’t even change.
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David Johnson
And here it’s is with just it unchecked. Not other changes.
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Ray Gralak
This looks like this could be the severe bug with the ASCOM platform I discovered months ago.
You should try updating to the latest version of the ASCOM Platform from here:
https://www.ascom-standards.org
-Ray
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of David Johnson
Sent: Friday, March 19, 2021 9:44 PM To: main@ap-gto.groups.io Subject: Re: [ap-gto] Problem with pointing model
Okay, this shows the effect of the JNow check box. Here are results with it checked. Note that RA Solved and Dec Solved don’t even change. |
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Ray i think that bug was 6.5 of ascom platform, and it was fixed in 6.5SP1, correct? On Fri, Mar 19, 2021 at 9:54 PM Ray Gralak <iogroups@...> wrote:
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David Johnson
That makes sense. I was very careful to make sure I upgraded to the latest version on my other computer before using the Mach2, because I knew of the issue. However, PrimaLuceLab "helpfully" pre-installed ASCOM on this new Eagle, so I didn't think of getting the latest version. I hope that fixes the problem. Thanks very much for the help. It doesn't get hours of sleep back, but the good news is that tomorrow night is also supposed to be clear, so I hope this problem is behind me. I had a couple of other problems that had nothing to do with your software of the Mach2 that made it even more frustrating.
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David Johnson
That fixed it. I’m imaging. Thanks.
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Ray Gralak
Hi David,
That fixed it. I’m imaging. Thanks.Okay great! I'm glad that solved the issue. -Ray -----Original Message----- |
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Ray Gralak
Hi Brian,
Ray i think that bug was 6.5 of ascom platform, and it was fixed in 6.5SP1, correct?Yes, that is correct! -Ray -----Original Message----- |
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David Johnson
Running APPM with CW up region for the first time. It's funny, but I had to be careful walking around the scope that I didn't block it when it's taking images when CW up. Haven't had that problem much before.
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