Data · collection · 1973
Interplanetary Monitoring Platform (IMP-8) Goddard Medium Energy (GME) Experiment Data
Listed in NASA Earthdata CMR
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.
Description
IMP-8 continues to operate. Energetic particle data from the IMP-8 Goddard Medium Energy (GME) Experiment provide a comprehensive basis for modulation and acceleration studies at 1 AU and a critical and unique baseline at 1 AU for ongoing studies of cosmic ray modulation and propagation in the outer heliosphere for Pioneer and Voyager investigations.
These include work at New Mexico State University, the University of New Hampshire, the University of Maryland, the University of Iowa, Nagoya University, the University of Tasmania and NASA/Goddard Space Flight Center. The GME instrument has provided continuous observations extending over almost a complete heliospheric cycle from launch in October 1973 and continues to operate with few problems. When combined with the data from essentially identical Goddard experiments on IMP 6 and 7, these cosmic ray and energetic interplanetary particle observations span a period of 26 years.
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Data from the GME instrument span an energy range of 0.5-450 MeV Hydrogen, 2-450 MeV/nuc Helium, ions from Carbon through the Iron group from several to >100 MeV/nuc and relativistic electrons. The quality of the IMP 8 GME data in terms of particle and energy resolution, and sensitivity, for galactic cosmic ray Hydrogen (2-230 MeV) and Helium (2-450 MeV/nuc) remains comparable to that of any other cosmic ray experiment flown since 1971.
Some data are available through NSSDC CDAWeb and at the GMER site at the SPDF. Data at SPDF include: - Selected instrument rates at 1 hour resolution on (pre-generated ONLY) 10-day GIF plots - Selected instrument rates at 1 hour resolution. In 90-day files with 1 file for each rate (typical length 0.1 MByte) - H and He Fluxes, plus Electrons and Rates at 30 minute resolution - H, He and Ion Fluxes, plus Electrons and Rates at 6-hour resolution - Full telemetry resolution data Data at NSSDC CDAWeb consists of: - Hourly Averaged High Energy Protons (20- 40 MeV) Data - PHAS Data: Pulse Height Data from the LED & MED - MATR Data: Pulse Height Analysis Summary - Hourly-Averaged High Energy Protons 40-80 MeV Data - CNTS Data: Count Rates from the VLET, LED, & MED Detectors
Links
Get the data
- IMP-8 GME data products at SPDF spdf.gsfc.nasa.gov/pub/data/imp/imp8/documents/archived_website/gme/GME_data.html ↗
download · from NASA CMR
- IMP-8 GME data via CDAWeb cdaweb.gsfc.nasa.gov/cdaweb/sp_phys ↗
download · from NASA CMR
Documentation and papers
- IMP-8 GME data and information spdf.gsfc.nasa.gov/imp8_GME/GME_home.html ↗
documentation · from NASA CMR
- nssdc.gsfc.nasa.gov /nmc/spacecraft/display.action?id=1973-078A ↗
Additional information from NSSDC on IMP-8 GME data
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214614919-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214614919-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
Provenance · 1 source records, 16 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214614919-SCIOPS | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:gme | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-energetic-particle-flux/alpha-particle-flux | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-energetic-particle-flux/electron-flux | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-energetic-particle-flux/ion-flux | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-energetic-particle-flux/proton-flux | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-energetic-particle-properties/particle-composition | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-energetic-particle-properties/particle-density | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-energetic-particle-properties/particle-speed | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:imp-8 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |