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    THEMIS E can be found in the following categories:
    Space & Earth Science

    NORAD ID: 30798
    Int'l Code: 2007-004E
    Perigee: 838.3 km
    Apogee: 70,737.5 km
    Inclination: 9.2 °
    Period: 1,436.2 minutes
    Semi major axis: 42166 km
    Launch date: February 17, 2007
    Source: United States (US)
    Comments: Aiming to uncover the physics that power the auroras that crown Earth's poles, five tiny probes have been launched into space for a synchronized orbital dance to locate where the trigger is pulled to create the eerily magnificent displays. Each of the 282-pound spacecraft is equipped with identical suites of instruments to examine the origin of space explosions known as substorms. The events start with the soup of ionized particles from the sun, called the solar wind, buffeting the Earth at a million miles per hour. Some of that energy gets trapped in the magnetic field, causing the field lines to stretch back in the direction opposite the sun like rubberbands. But when stretched too far the lines snap, releasing the energy that generates shimmering auroral displays.

    Two Line Element Set (TLE):

    1 30798U 07004E   15089.61897919 -.00000520  00000-0  00000+0 0  9998
    2 30798 009.1704 324.1361 8288566 261.6355 359.4950 01.00267217 29519
    Source: AFSPC

    NASA's NSSDC Master Catalog entry for THEMIS E

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