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MMS 2 Fast Plasma Investigation, Dual Electron Spectrometer (FPI, DES) Instrument Distributions, Level 2 (L2), Fast Mode, 4.5 s Data

Published by MMS_SDC, CDAWeb | National Aeronautics and Space Administration | Catalog Last Checked: August 19, 2026 at 12:32 AM | Dataset Last Updated: August 17, 2026
The Fast Plasma Instrument (FPI) usually Operates in Fast Survey (FS) Mode in the MMS Region Of Interest (ROI) for the current Mission Phase. Data are taken at Burst (30/150 ms for DES/DIS) Resolution are aggregated onboard and made available at Survey (4.5 s) Resolution in this Mode. This Product contains Phase Space Distribution Maps of Results from surveying the High Resolution Observations during each 4.5 s Period. In particular, the (highest possible Quality at the Time of Release) corrected/converted "Fast Survey Sky Map" Distributions are reported with Time Stamps and other Annotation characterizing the State of the Instrument System at the indicated Time.

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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 The Fast Plasma Instrument (FPI) usually Operates in Fast Survey (FS) Mode in the MMS Region Of Interest (ROI) for the current Mission Phase. Data are taken at Burst (30/150 ms for DES/DIS) Resolution are aggregated onboard and made available at Survey (4.5 s) Resolution in this Mode. This Product contains Phase Space Distribution Maps of Results from surveying the High Resolution Observations during each 4.5 s Period. In particular, the (highest possible Quality at the Time of Release) corrected/converted "Fast Survey Sky Map" Distributions are reported with Time Stamps and other Annotation characterizing the State of the Instrument System at the indicated Time.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "ftps://lasp.colorado.edu/mms/sdc/public/data/mms2/fpi/fast/l2/des-dist/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "ftps://spdf.gsfc.nasa.gov/pub/data/mms/mms2/fpi/fast/l2/des-dist/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=MMS2_FPI_FAST_L2_DES-DIST&index=sp_phys"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://cdaweb.gsfc.nasa.gov/hapi"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://helio.data.nasa.gov/dataset/MMS_2_FastPlasmaInvestigation_DES_Fast_Level2_Distribution_PT4.5S"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://hpde.io/NASA/NumericalData/MMS/2/FastPlasmaInvestigation/DES/Fast/Level2/Distribution/PT4.5S"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://lasp.colorado.edu/mms/sdc/public/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://lasp.colorado.edu/mms/sdc/public/data/mms2/fpi/fast/l2/des-dist/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://mms.gsfc.nasa.gov/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://spdf.gsfc.nasa.gov/pub/data/mms/mms2/fpi/fast/l2/des-dist/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://www.nasa.gov/mission_pages/mms/spacecraft/mms-instruments.html#fpi"
  }
]
identifier https://doi.org/10.48322/nf79-gp85
keyword 
[
  "energeticparticles"
]
landingPage https://doi.org/10.48322/nf79-gp85
license https://www.usa.gov/government-works
modified 2026-08-17
programCode 
[
  "026:000"
]
publisher 
{
  "name": "MMS_SDC, CDAWeb",
  "@type": "org:Organization"
}
theme 
[
  "Heliophysics"
]
title MMS 2 Fast Plasma Investigation, Dual Electron Spectrometer (FPI, DES) Instrument Distributions, Level 2 (L2), Fast Mode, 4.5 s Data

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