Print

[W2LO]

 I realize that solar data varies constantly so it's like asking for the temperature today. Nevertheless, I would occasionally like to know the flux, A and K on and around a given date. Is there a resource available where historical solar info by date can be found?

Thanks for any assistance!

[K0RDG]

These might get you started:

https://www.spaceweatherlive.com/en/solar-activity/solar-cycle/historical-solar-cycles.html

https://www.solen.info/solar/history/

[VE1YY]

The source that I presently am using is the Space Weather Prediction Center at https://www.swpc.noaa.gov/

The planetary k indices with a present day number and 2-day look back is at
https://www.swpc.noaa.gov/products/planetary-k-index

My present work involves checking back more than a few days. So, I use
ftp://ftp.swpc.noaa.gov/pub/indices/old_indices/

Another site is https://www.sws.bom.gov.au/ but bear in mind their observations and reporting emphasize Australia and southern hemisphere.

73 and GL,

Bill, VE1YY

[W2LO]

  My thanks to both of you for your responses. I've been looking for this for a while.

  73 and high solar flux to you!

                               Mike  W2LO