Cannot Plate Solve Canon 1200D images using local Astrometry.net server

Sequence Generator Plate Solving
#1

Hello all …

Perhaps someone can help. I have plate solving working well using Elbrus and local Astrometry.Net server with images taken using my IMG2Pro. I can also throw images from other sources at it and blind solving using Astrometry.net without a problem.

However, I have been sent a couple of images from a 1200D Canon that will not plate solve. I can upload the image to Astrometry.net on the web and that solves without any issues. They will not solve on my machine though.

Any ideas?

Thanks

–
Mick

#2

What are the scale of these images and what indexes did you download for your local Astrometry.NET install?

#3

Hi Ken … The scale is 1.77 arcsecs/pixel. I can upload the image to Astrometry.Net and it solves very quickly. On my PC I have downloaded all of the .fits for my local server (desperation really). If I input the scale then it solves OK but it always fails when trying to blindsolve.

I am puzzled. Using my data (this particular image is not mine) then blindsolving works very quickly but this one image just fails.

Any ideas?

Thanks

–
Mick

#4

Not sure what this means… do you mean you downloaded all the index files? I can’t recall if there is a timeout on ANSVR, but having all of the index files can lead to considerably longer solve times (you should really just have the ones you need for your FoV(s)). @Andy can correct me if I’m wrong here.

You can post the FITS file you are having trouble with and we can help to validate whether it is a data or setup issue. Anything like dropbox is good.

#5

If you have the scale error override set in ansvr you’ll likely get bad results when attempting to blind solve. I would recommend removing the scale error override in ansvr if you use ansvr as your only solver

Thanks
Jared