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CRRES PROTEL proton equatorial distributions vs.L

Metadata Updated: April 10, 2026

This data set holds half-orbit (~5 hour) resolution \nproton distributions (19 5-deg equatorial pitch angles vs. 24 energies) \nfrom the Proton Telescope (PROTEL) on the CRRES spacecraft. \nThe energy range covered is 1-100 MeV. These data are developed from \nthe 1-min insitu pitch angle distributions by assigning each 5-deg bin \nin pitch angle a corresponding McIlwain L value and then by mapping the \ninsitu pitch angle distribution to the equator, into 0.05-wide L bins, \nassuming first adiabatic invariant conservation. The mapping yields \nequivalent equatorial pitch angles. Flux data for a given half-orbit, \ngiven 0.05-wide L bin, given equatorial pitch angle and given energy bin\nare then averaged. Data records are for a given half-orbit and given\nL bin; each record contains averaged fluxes vs. equatorial pitch angle\nand energy. The data are in SGI(UNIX) binary format. Read software\nis contained within the companion documentation.

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

Downloads & Resources

Dates

Metadata Created Date March 13, 2026
Metadata Updated Date April 10, 2026

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date March 13, 2026
Metadata Updated Date April 10, 2026
Publisher NASA Space Physics Data Facility (SPDF) Data Services
Maintainer
Identifier /SDE/SPASE_JSON/|b02900d6ef2cf7e5b4a3885e24cae79a
Data Last Modified 2026-04-06
Category Heliophysics
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id a99ef447-71a1-4a07-9439-99fa6e18c283
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
License https://www.usa.gov/government-works
Program Code 026:000
Source Datajson Identifier True
Source Hash 731d575cecff183ab8886576a2300919d9bfc6e76ad1b725a70d282d59ec36c8
Source Schema Version 1.1

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