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  • THEMIS (en)
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  • [Source: NASA THEMIS Mission Home Page, http://www.nasa.gov/mission_pages/themis/mission/ ] NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) aims to resolve one of the oldest mysteries in space physics, namely to determine what physical process in near-Earth space initiates the violent eruptions of the aurora that occur during substorms in the Earth's magnetosphere. THEMIS is a 2-year mission consisting of 5 identical probes that will study the violent colorful eruptions of Auroras. For the first time NASA will launch a constellation of five satellites to study substorms. The THEMIS probes will line up over North America once every four days. Over the mission’s two-year lifetime, the probes should be able to observe some 30 substorms. THEMIS is the fifth medium-class mission under NASA's Explorer Program, which was conceived to provide frequent flight opportunities for world-class scientific investigations from space within the Heliophysics and Astrophysics science areas. The Explorers Program Office at Goddard Space Flight Center, Greenbelt, Md., manages this NASA-funded mission. The University of California, Berkeley's Space Sciences Laboratory and Swales Aerospace, Beltsville, Md., built the THEMIS probes. Group: Platform_Details Entry_ID: THEMIS Group: Platform_Identification Platform_Category: Solar/Space Observation Satellites Platform_Series_or_Entity: NASA Medium Class Explorers (MIDEX) Short_Name: THEMIS Long_Name: Time History of Events and Macroscale Interactions During Substorms End_Group Group: Platform_Associated_Instruments Short_Name: THEMIS-SST Short_Name: THEMIS-ESA Short_Name: THEMIS-FGM Short_Name: THEMIS-EFI Short_Name: SCM End_Group Group: Orbit Orbit_Type: HEO > Highly Elliptical Orbit End_Group Creation_Date: 2008-07-17 Online_Resourc : http://www.nasa.gov/mission_pages/themis/main Online_Resourc : http://themis.ssl.berkeley.edu Online_Resourc : http://www.atk.com/Customer_Solutions_SpaceSystems/cs_ss_spacesys_ssp_ppcs-themis.as Sample_Imag : http://www.nasa.gov/images/content/164405main_THEMIS-Spacecraft_bus2.jp Group: Platform_Logistics Launch_Date: 2007-02-17 Launch_Site: Cape Canaveral/Kennedy Space Center, USA Primary_Sponsor: USA/NASA End_Group End_Group (en)
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