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IMP 8 GME Particle Observations Over Three Solar CyclesThe Goddard Medium Energy experiment on the IMP 8 spacecraft has made nearly continuous observations of the near-Earth energetic particle environment from its launch in October, 1973 until near present. We summarize several aspects of these observations, including solar energetic particle events, CIR-associated events, and cosmic ray modulations. In particular, we note that, as expected fiom the pattern of smaller recurrent (27 day) cosmic ray modulations seen in the mid 1980's A less than 0 solar minimum compared to the previous and following (A greater than 0) minima, recurrent modulations are again reduced in the current solar minimum.
Document ID
20070022877
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Richardson, Ian
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cane, Hilary
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Von Rosenvinge, Tycho
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
McGuire, Robert
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 23, 2013
Publication Date
July 3, 2007
Subject Category
Solar Physics
Meeting Information
Meeting: 2007 International Cosmic Ray Conference
Location: Merida, Yucatan
Country: Mexico
Start Date: July 3, 2007
End Date: July 11, 2007
Sponsors: International Union of Pure and Applied Physics
Funding Number(s)
CONTRACT_GRANT: NNG06EO90A
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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