@jbz The problem is that #Starlink isn't just #LEO, but extremely low LEO as in "#ISS & #Tianggong" height of 409-250km, meaning the exosphere drags them down rapidly.
#Geomagnetic storms can cause electron density to increase 📈. Measurements show long electron lifetimes (i.e., longer than 100 days) in the inner belt. Energy-dependent electron lifetimes of roughly five to 20 days are found in the outer belt https://en.wikipedia.org/wiki/Van_Allen_radiation_belt#Research
The United Launch Alliance #Atlas V 401 that delivered #NASA’s #RBSP or #VanAllenBelt #Probes into Earth #orbit to measure the radiation environment around the Earth.
Get a print or other merchandise at https://heronfox.pixels.com/featured/atlas-v-rocket-with-rbsp-heron-and-fox.html
Kevin Karhan 
Spaceflight 🚀
scinexx - das wissensmagazin
Heron&Fox Photo