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Calculation of the Atomic Oxygen Fluence on the Van Allen Probes

The Van Allen Probes Mission consists of two identical spacecraft flying in highly elliptical orbits, with perigee altitudes originally near 600 km. During the low-altitude periods of the orbits, the spacecrafts are immersed in a region of high-density atomic oxygen. Atomic oxygen is known to change and degrade the properties of spacecraft surfaces (Banks et al., 2004), such as those of the Van Allen Probes Electric Field and Waves (EFW) instrument. The consistency of the sensor surfaces in EFW is important because the me ...

Schumm, G.; Bonnell, J.; Wygant, J.; Mozer, F.;

YEAR: 2020     DOI:

Van Allen Probes; atomic oxygen; Langmuir probes; DAG