Check the weather and solar forecast before planning a UAS (drone) flight. Solar activity can affect the performance of the GPS receivers. Solar storms can directly effect the GPS system we all use for the safe flight of UAV multi-rotor systems.
Estimated Planetary solar chart Kp Index
GOES 8 Proton Flux
RED = No GPS flying YELLOW = Take caution and ready to switch flight mode GREEN = Always be ready to switch flight mode