match triangles issue

Gadgetman

Last night I was trying to use the ASIStudio Live Stack, and I kept getting an error message regarding the stacking. The message was something about “match triangles”. Now I do have the settings to keep all the files so I can stack later. What baffles me is the PHD2 guiding was really good, under the TOT 1.0, the object was the Pleiades, no wind and the skies are Bortle-4.5. I do not use the Live Stack program much but each time I have used it I see the message of losing pictures in the stack count. The image time was set for 120-seconds. The telescope is Sky-Watcher Quattro 6” and the imaging camera is ZWO ASI294MC Pro. I was using Bias and Dark masters but no Flats. The mount is a Sky-Watcher EQ6-R Pro and guides wonderful. Most YouTube videos are going over the ASI Air software and that is not what I am using. So, any ideas on the issue, is there a setting that I am not doing? Video's I have seen are not addressing the issue.

I did review this video again; https://www.youtube.com/watch?v=e2CygXmJVto&t=94s&ab_channel=AtTheEyepiece
And this one; https://www.youtube.com/watch?v=4xggaQWhXcs&ab_channel=MasaSchumit

Software@ZWO

Gadgetman Thanks for your feedback. Can you provide some original images? We will investigate what causes "match triangles" to fail. Thank you.

Best Regards
Mouling

Gadgetman

To download the fits files, how many do you want.? Each one is 22,846 KB. I do not know if my Drop Box or the Google method will take that large of a file. I recently did a Google method to a previous Tech person a few days ago. Not sure if the person was able to get them via the link. Seems to me providing a link to the box would allow anyone to download since I have no email for the intended person. Drop Box requires me to have an email and so did the Google method or copy the link. Which is the best download method and safest?

Tech@ZWO

Gadgetman Dropbox and google drive should work for these files. or your can share the link here and then i apply to the permission.

Gadgetman

Still not sure how this works, but here is a link to the file folder. Hope it allows access to the 4 Fits files in the folder. These files were from the night I did check the "mark Star" box.
https://drive.google.com/drive/folders/1Ywb8FSnzmYrvgoEJsSA3ttwBi-7bhd_O?usp=sharing
I checked on the "Mark Star" box the other night and it seemed to stack but my master flat was not helping resolve the image. Removed the Flat but left Bias and Dark masters checked then the "match triangles" error came on again.
When I posted the first time I did not use any settings for Bias, Darks and Flats nor did I check the "mark star" box and the "match triangles" error happened then.

Tech@ZWO

Gadgetman Thank you for your images, all looks great, and can be stacked well in deepstack.
So we suspect it may be because the fov of latter images do not match the first image. could you notice this if the problem appears again? thank you.

Gadgetman

Tech@ZWO I will see. Strange that the FOV would be changing. I was using a Sky-Watcher 6" Quattro, Sky-Watcher EQ6-R Pro mount, ZWO ASI533MC Pro camera. Guiding was excellent using PHD2 and auto focus with the ZWO EAF was not moving after focus was achieved.

Tech@ZWO

Gadgetman If so, that's strange, or could you take a video to record this issue if it appear next time?

Gadgetman

I did get the live stacking to work on another sky object the other night. Maybe, there were not enough stars on the other object a few weeks ago.

DdI8MzlL

I have a problem with the "matched triangles" that just doesn't seem to be working right. I can use ASI live and it matches everything perfectly, 90 frames only 3 dropped. I change nothing about my setup and bring up ASIImage and capture the flat/bias/light/dark images using a batch process. I can inspect the fits and they all look fine. I load them into their respective tabs in ASIDeepStack...and it cannot stack one single frame. Every one thrown away with the matched triangles error. And "not enough stars". Same exposure time, same settings, how can live find enough stars and match triangles but deepstack can't find even one? There's no difference in the input there and what ASILive was getting. How can one work without a hitch and absolutely nothing from the other one??? I have one of M35 that is full of stars, all clear, no motion between frames...same message. I took 12 10 second images for the bias/flat/dark images, and 40 30 second images for the light. Everything looks ideal. It just doesn't work, full stop. Won't even stack the first frame.