# What is the space environment between Van Allen belts like?

Van Allen belts contain high energy electrons and protons, but what about the area between the belts?

Is it "regular" space, just like it is past the belts? Anything interesting going on there? "Just" exosphere?

I suspect that it is more protected by the Earth's magnetic field than the space past the belts -- when compared to the side facing the sun, correct?

Google searches for "between Van Allen belts" and similar don't come up with much useful data.

• The wikipedia article on the belts has plots of proton flux that should give you a rough idea of how much radiation is between the belts. – 2012rcampion Mar 31 '16 at 6:39

• In the altitude v orbital time plot we can see which orbital hours are spent on the heights that correspond to the belts. Then we use those hours as the reference for other plots. Altitudes of the belts should be looked up on Wikipedia as an exercise to the reader :D – Alfis Apr 5 '16 at 19:19