G Scale: https://www.swpc.noaa.gov/noaa-scales-explanation

You can see the predictions forecast at the top of any of the NOAA Aurora dashboard pages.

Prediction oval: https://www.swpc.noaa.gov/communities/aurora-dashboard-experimental

Data:

• NOAA: https://www.swpc.noaa.gov/products-and-data
• https://www.swpc.noaa.gov/content/data-access
• SOHO: https://soho.nascom.nasa.gov/data/data.html

Check NASA and ESA for boatloads more, you’ll probably have to search for the specific satellites. -> https://en.m.wikipedia.org/wiki/List_of_Solar_System_probes

You’ll have to visit the sites of the ground stations that are shown on spaceweather to get their data as well. It’s out there.

New satellites:

• https://science.nasa.gov/blogs/punch/2025/04/17/nasas-punch-mission-captures-first-images-of-sun-space/
• https://eu.usatoday.com/story/news/nation/2025/03/12/nasa-spherex-punch-launch/82302137007/