Data · collection · 1973
Interplanetary Monitoring Platform (IMP-8) Low-Energy Proton and Electron Differential Energy Analyzer (LEPEDEA) 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. These experiments were designed to measure the energy spectra of low-energy electrons and protons in the geocentric range of 30 to 40 earth radii to give further data on geomagnetic storms, aurora, tail and neutral sheet, and other magnetospheric phenomena.
The detectors were a dual-channel, curved-plate electrostatic analyzer (LEPEDEA - low energy proton and electron differential energy analyzer) with 16 energy intervals between 5 eV and 50 keV. They had an angular field of view of 9 x 25 deg. The detectors could be operated in one of two modes: (1) one providing good angular resolution (16 directions for each particle energy band) once each 272 s, and (2) the other providing good temporal resolution in which the entire energy range in four directions was measured every 68 s.
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The data set consists of distribution function and moments data taken during many magnetotail passes of the IMP 8 spacecraft (at ~200,000 km). The data are at 3-min. resolution. Other data consists of: - Color Energy-Time Spectrograms, Digital Images in GIF Format - Full Color Slides of E-T Spectrograms for Plasma Measurements - 164 Second Resolution Electron and Proton Plasma Data, CDAW - Electron and Proton Plasma Data, CDAW - DigitalProton and Electron Distribution Functions
Links
Documentation and papers
- www-pi.physics.uiowa.edu /lep ↗
IMP-8 Low-Energy Proton and Electron Differential Energy Analyzer web site at University of Iowa.
documentation · from NASA CMR
- nssdc.gsfc.nasa.gov /nmc/experiment/display.action?id=1973-078A-04 ↗
Additional information from NSSDC on IMP-8 LEPEDEA
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214614980-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214614980-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Electron Flux · Interplanetary Monitoring Platform-8 · Low-Energy Proton and Electron Differential Energy Analyzer (IMP-8) · Magnetic Storms · Particle Density · Particle Distribution Functions · Particle Speed · Particle Temperature · Plasma Waves · Proton Flux
- Inferred from text
- Image 65%
Provenance · 1 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214614980-SCIOPS | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:lepedea | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/ionosphere-magnetosphere-dynamics/magnetic-storms | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/ionosphere-magnetosphere-dynamics/plasma-waves | 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/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-density | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-energetic-particle-properties/particle-distribution-functions | 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[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-energetic-particle-properties/particle-temperature | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| 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 |