Solar Wind
ACE
Wind
Outer Magnetosphere
MMS
THEMIS
ARTEMIS
Geotail
Inner Magnetosphere/Geosynchronous Orbit
Van Allen Probes (RBSP)
GOLD
Arase (ERG)
Low-Earth Orbit
AMPERE
COSMIC
Swarm
CHAMP
GRACE
ICON
GOCE
DMSP
Ground-Based
SuperDARN
SuperMAG
Ground-based GPS
PFISR and RISR
THEMIS ASI