- Satellite Effects of Space Weather
- Humans in Low earth orbits
- During Extra Vehicular Activities (EVAs), nearly all effects
similar to spacecraft are possible, the suit being similar to the
satellite and the shielding being smaller (around 0.5mm) (Lemaignen,
1988). In particular, astronauts must pay attention to meteoroids
and debris, charging effects and energetic particles (protons from
the radiation belts and ions from the cosmic rays or SEPEs) on
low-altitude stations (like MIR, ISS). Precautions are normally
taken, astronauts being normally in the wake of the vehicle to avoid
impacts with debris. However, charging effects can appear especially
when astronauts cross the boundary between sunlight and shadow.
Particular attention must be paid to SEPEs. When a SEPE is in
progress, astronauts cannot leave the station and when a SEPE is
beginning, they must come back inside the station, lethal risks
being too high.