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IMP-8 (IMP-J) was launched by NASA on October 26, 1973 to measure the magnetic fields, plasmas, and energetic charged particles (e.g., cosmic rays) of the Earth's magnetotail and magnetosheath and of the near-Earth solar wind. IMP-8, the last of ten IMP (Interplanetary Monitoring Platform) or AIMP (Anchored-IMP) spacecraft launched in 10 years, continues to operate to this day in its near-circular, 35 Earth Radii, 12-day orbit. It is an important adjunct to the International Solar Terrestrial Physics program, provides in-ecliptic, one Astronomical Unit baseline data for the deep space Voyager and Ulysses missions, and continues to accumulate a long-timeseries database useful in understanding long-term solar processes. |
| Instruments | PI site | CDAWeb | OMNIWeb | FTPBrowser | Anon/FTP |
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| Magnetometer |
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| Plasma | |||||
| LANL |
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| MIT |
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| IOWA |
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| Particles | |||||
| U. Maryland |
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| JHU/APL-EPE |
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| JHU/APL-CPME |
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| U. Chicago |
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| GSFC |
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| Other | |||||
| CPME at Kansas |
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| Field, Plasma at UCLA |
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(*) CDAWeb, OMNIWeb, FTPBrowser - data browse and retrieve; Anon/FTP - download data files; PI - Principal Investigator site
General Information
Hourly resolution geocentric position information (from JHU/APL)
Finding IMP in the sky after 20 years
Solar Wind and Magnetosphere Residence Times
Bow Shock Crossings
Heliocentric Positions of IMP/Earth System
MIDL web-based software for accessing and analyzing data at JHU/APL
Magnetometer (GSFC, Lepping)
Solar Wind Plasma (MIT Faraday Cup, Lazarus)
Solar Wind Plasma (LANL Electrostatic Analyzer, Gosling)
Magnetospheric Plasma (U. Iowa LEPEDEA, Frank)
Electric/Magnetic Waves (U. Iowa, Gurnett)
Solid-State Detectors (U. Maryland, Ipavich)
Charged Particles Measurement Experiment (JHU/APL, Decker)
Solar and Cosmic-Ray Particles (GSFC, McGuire)
Cosmic Ray Nuclear Composition (U. Chicago, Lopate)
Electrons and Hydrogen and Helium Isotopes (Cal. Tech., Stone)
Energetic Electrons and Protons (JHU/APL, Williams)
IMP-8 Bibliography 1996-2000
Information on Earlier IMP Spacecraft
SPDF Space Physics page
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| If you have any comments about IMP-8 service, contact: Dr. Natalia Papitashvili, natasha@mail630.gsfc.nasa.gov, Mail Code 612.4, NASA Goddard Space Flight Center Greenbelt, MD 20771 USA |