IMP 8 Charged Particle Measurement Experiment (CPME) Energetic Particle Experiment (EPE) MAG PLS Merge Data Set
This data set contains 20.48s IMP8 CPME and EPE energetic \nparticle data, along with IMP8 magnetic field and plasma data to facilitate use \nof the particle data. CPME data consist of: spin-integrated, 20.48s resolution \ncount rates of protons in ten energy channels (0.29-0.50 to 90-440 MeV), of \nalpha particles in six channels (0.59-1.14 to 28-52 MeV/n), of Z>=3 particles in \nfive channels (0.70-1.45 to 6-105 MeV/n), of electrons in 3 channels (0.22-2.5 \nto 0.80-2.5 MeV), of protons and alpha particles mixed in two channels \n(>35, >50 MeV/n) and uncertainties in all the preceding 20-s rates; \nspin-integrated, 10.24s count rates of protons in three energy channels \n(0.29-0.50 to 0.96-2.00 MeV) and of electrons in the three energy channels given \nabove, plus uncertainties and data quality flags for all these 10.24s rates; \n10.24s count rates in 8 spin sectors for 0.29-0.50 MeV protons and for 0.22-2.50 \nMeV electrons and their uncertainties and dataquality flags; 20.48s count rates \nin 8 spin sectors for 0.59-1.14 and 1.8-4.2 MeV/n alpha particles and for 0.7-3.3 \nand 3.1-8.8 MeV/n Z>= 3 particles, and their uncertainties anddata quality flags. \nEPE data consist of 16-sectored, 20.48s counts (not rates) for Z>=1 particles in \n0.05-0.22 and 0.22-0.80 MeV/n channels, for electrons in 0.03-0.10 and 0.10-0.20 \nMeV channels and for Z>=1, E>0.015 MeV/n particles and electrons mixed. Magnetic \nfield data include GSE and GSM cartesian components and direction angles. Plasma \ndata, mainly from the MIT Faraday Cup, include flow velocity, density and \ntemperature. Better sources exist for those desiring only IMP8 magnetic field \nand/or plasma data. Data are available as daily gzipped ASCII files; spin-\nintegrated, 20.48s CPME count rates are also available with display and subset \ncapability via FTPBrowser.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "026:00" ] |
| contactPoint |
{ "fn": "NASA Space Physics Data Facility", "@type": "vcard:Contact", "hasEmail": "mailto:NASA-SPDF-Support@nasa.onmicrosoft.com" } |
| description | This data set contains 20.48s IMP8 CPME and EPE energetic \nparticle data, along with IMP8 magnetic field and plasma data to facilitate use \nof the particle data. CPME data consist of: spin-integrated, 20.48s resolution \ncount rates of protons in ten energy channels (0.29-0.50 to 90-440 MeV), of \nalpha particles in six channels (0.59-1.14 to 28-52 MeV/n), of Z>=3 particles in \nfive channels (0.70-1.45 to 6-105 MeV/n), of electrons in 3 channels (0.22-2.5 \nto 0.80-2.5 MeV), of protons and alpha particles mixed in two channels \n(>35, >50 MeV/n) and uncertainties in all the preceding 20-s rates; \nspin-integrated, 10.24s count rates of protons in three energy channels \n(0.29-0.50 to 0.96-2.00 MeV) and of electrons in the three energy channels given \nabove, plus uncertainties and data quality flags for all these 10.24s rates; \n10.24s count rates in 8 spin sectors for 0.29-0.50 MeV protons and for 0.22-2.50 \nMeV electrons and their uncertainties and dataquality flags; 20.48s count rates \nin 8 spin sectors for 0.59-1.14 and 1.8-4.2 MeV/n alpha particles and for 0.7-3.3 \nand 3.1-8.8 MeV/n Z>= 3 particles, and their uncertainties anddata quality flags. \nEPE data consist of 16-sectored, 20.48s counts (not rates) for Z>=1 particles in \n0.05-0.22 and 0.22-0.80 MeV/n channels, for electrons in 0.03-0.10 and 0.10-0.20 \nMeV channels and for Z>=1, E>0.015 MeV/n particles and electrons mixed. Magnetic \nfield data include GSE and GSM cartesian components and direction angles. Plasma \ndata, mainly from the MIT Faraday Cup, include flow velocity, density and \ntemperature. Better sources exist for those desiring only IMP8 magnetic field \nand/or plasma data. Data are available as daily gzipped ASCII files; spin-\nintegrated, 20.48s CPME count rates are also available with display and subset \ncapability via FTPBrowser. |
| distribution |
[ { "@type": "dcat:Distribution", "format": "BIN", "mediaType": "application/octet-stream", "downloadURL": "ftps://spdf.gsfc.nasa.gov/pub/data/imp/imp8/particles_apl/merge_20s_ascii/" }, { "@type": "dcat:Distribution", "format": "BIN", "mediaType": "application/octet-stream", "downloadURL": "http://sd-www.jhuapl.edu/IMP/" }, { "@type": "dcat:Distribution", "format": "BIN", "mediaType": "application/octet-stream", "downloadURL": "http://sd-www.jhuapl.edu/IMP/data/imp8/merge/" }, { "@type": "dcat:Distribution", "format": "HTML", "mediaType": "text/html", "downloadURL": "https://omniweb.gsfc.nasa.gov/ftpbrowser/imp8_cpme.html" }, { "@type": "dcat:Distribution", "format": "HTML", "mediaType": "text/html", "downloadURL": "https://spdf.gsfc.nasa.gov/pub/data/imp/imp8/documents/archived_website/imp8_merged.html" } ] |
| identifier | /SDE/SPASE_JSON/|6f848476af816cb59f8d2e522f9e3f32 |
| keyword |
[ "energeticparticles" ] |
| license | https://www.usa.gov/government-works |
| modified | 2026-06-22 |
| programCode |
[ "026:000" ] |
| publisher |
{ "name": "NASA Space Physics Data Facility (SPDF) Data Services", "@type": "org:Organization" } |
| theme |
[ "Heliophysics" ] |
| title | IMP 8 Charged Particle Measurement Experiment (CPME) Energetic Particle Experiment (EPE) MAG PLS Merge Data Set |
