Synchronizing images of the sun and other things, with many independent observers

How do I match up your image with ones from public sources? Here is a GONG H-alpha from Cerro Tololo (CHL) for 2024-10-25 13:38:42Z. Is is possible to match images from different places on earth and compare them?

https://gong2.nso.edu/HA/hag/202410/20241025/20241025133842Ch.jpg

Here is the page I found by searching “live H alpha images of the sun”. Looking at them is useless, my eyes are bad. But I can see the data and make comparisons, if the data is in lossless and compatible format.

Any suggestions? Can two or more people take photos of the sun with the frame synchronized globally so they are taking images of the sun at the same moment on the sun. With JPL Horizon (or Python) it is possible to compute the time on the earth for any place when the image leaves the sun. Various kinds of correlation or interferometer imaging – is that possible with amateur systems? Can your images (I have no hardware of my own) be compared to images of others here, or to images from solar observatories world wide and from space?

Thanks,
Richard Collins, Houston Texas

Here is the HTTPS folder for their archive data
https://nispdata.nso.edu/ftp/HA/haf/

Here is the folder for 2024-10-21. All their data is in FITS 2048×2048 format compressed using fz compression.

https://nispdata.nso.edu/ftp/HA/haf/202410/20241021/

Going up the directory there is https://nispdata.nso.edu/ftp/HA/ which has many subfolders that start with “ha” and the single letters ( ha1, ha3, haD, haL, hac had, haf, hag, ham, has, ha, hau, hay )

The main page is at https://gong2.nso.edu/products/mainView/table.php?configFile=configs/mainView.cfg where they show GONG H-alpha, GONG magnetograms, VSM 630.2 nm photosphere, VSM 854.2 nm Chromosphere, GONG intensity.

I have followed Solar Dynamics Observatory and they do NOT have H alpha for some reason. Any suggestions?