Descrizione : The Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission is a five-satellite Explorer mission whose primary objective is to understand the onset and macroscale evolution of magnetospheric substorms. Most importantly, THEMIS will find out which magnetotail process is responsible for substorm onset: (a) a local disruption of the plasma sheet current; or, (b) that current`s interaction with the rapid influx of plasma emanating from lobe flux annihilation at ~25Re.
KSC post stamp.

USA 2780 - K 1306 - image retouchée ?

Pagina : future · Ref: USA 2780 

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THEMIS P1 THRU P5 (SATELLITES) · DELTA 7925 10C