On the 1990 launched PACSATS AO-16 & LO-19, onboard software had detection of SEUs (Single Event Upsets), allowing detection and correction on the fly, as well as logging of SEUs.
SEUs were produced when high energy particles hit and change a bit in local satellite memory.
These SEUs Logs could be downloaded, and thru a local developed program knowing time of SEU it could be determined where was the satellite at that time.
Thru several days error logs, plots could be produced, amazingly showing the South Atlantic Anomaly danger zone and other areas of higher energy.
One of the graphs at: http://amsat.org.ar/showlog.gif
At that time (1991) results where shared to NASA, becoming a contribution due to Amateur Satellites and AMSAT.
This 30 years old application (showlog at http://amsat.org.ar/SOFTWARE/TRACK1/SHOWLOG.ZIP ) is still available and could be run using DOSBOX.
73, LU7ABF, Pedro
On 7/8/20, Robert McGwier via AMSAT-BB amsat-bb@amsat.org wrote:
Nice video.
On Sun, Jul 5, 2020 at 8:00 PM Paul F. Merrill via AMSAT-BB < amsat-bb@amsat.org> wrote:
https://youtu.be/w-nfF7bK34Y _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
-- Bob McGwier Founder, Federated Wireless, Inc Founder and Technical Advisor, HawkEye 360, Inc Adjunct Professor Virginia Tech Former Chief Scientist: The Ted and Karyn Hume Center for National Security and Technology Senior Member IEEE, Facebook: N4HYBob, ARS: N4HY _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb