MMS 2 Hot Plasma Composition Analyzer (HPCA) Time of Flight, TOF, Counts, Level 2 (L2), Survey Mode, 0.625 s Data

Hot Plasma Composition Analyzer (HPCA) Time of Flight, TOF, Counts, Level 2, Survey 10 s Data. The MMS HPCA instruments measure the energy and composition of magnetospheric plasmas in the energy range from 1 eV to 40 keV. An electrostatic energy analyzer (ESA) that is optically coupled to a carbon-foil based Time-of-Flight (TOF) section comprises each HPCA. The basic HPCA data product is an array of counts for 5 ion species, at 63 energies, for each of 16 elevation anodes. Sixteen basic products, also called azimuths, are acquired every 10 s; half a spacecraft spin period nominally has 16 azimuths. The five ion species are protons (H+), alpha particles (He++), helium ions (He+), singly charged Oxygen (O+), and background counts.

Data and Resources

Field Value
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier https://doi.org/10.48322/6t90-mz79
landingPage https://doi.org/10.48322/6t90-mz79
modified 2025-09-10
programCode {026:000}
publisher MMS Science Data Center;NASA Space Physics Data Facility (SPDF) Coordinated Data Analysis Web (CDAWeb) Data Services
resource-type Dataset
source_datajson_identifier true
source_hash 142f6adaa621e7fc84f14169a9152af313f972ff91790c4f389c6cd5245eb4fc
source_schema_version 1.1
temporal 2018-11-15/2018-11-15
theme {Heliophysics}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • energeticparticles
isopen False
license_id notspecified
license_title License not specified
maintainer Stephen A. Fuselier
maintainer_email stephen.fusilier@swri.org
metadata_created 2025-09-25T16:22:20.044072
metadata_modified 2025-09-25T16:22:20.044083
notes Hot Plasma Composition Analyzer (HPCA) Time of Flight, TOF, Counts, Level 2, Survey 10 s Data. The MMS HPCA instruments measure the energy and composition of magnetospheric plasmas in the energy range from 1 eV to 40 keV. An electrostatic energy analyzer (ESA) that is optically coupled to a carbon-foil based Time-of-Flight (TOF) section comprises each HPCA. The basic HPCA data product is an array of counts for 5 ion species, at 63 energies, for each of 16 elevation anodes. Sixteen basic products, also called azimuths, are acquired every 10 s; half a spacecraft spin period nominally has 16 azimuths. The five ion species are protons (H+), alpha particles (He++), helium ions (He+), singly charged Oxygen (O+), and background counts.
num_resources 4
num_tags 9
title MMS 2 Hot Plasma Composition Analyzer (HPCA) Time of Flight, TOF, Counts, Level 2 (L2), Survey Mode, 0.625 s Data