Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Try the next-generation Data Catalog at catalog-beta.data.gov and help shape it with your feedback.

IMP 8 Cosmic Ray Nuclear Composition (CRNC) 15-min PHA and coincidence mode counts

Metadata Updated: April 10, 2026

This 15-min-resolution data set consists of 5 count rates from the Low Energy Telescope, \n 8 count rates for the main telescope (MT), 4 counts of pulse height analyzed events in each of 4 MT \n coincidence modes, and 27 box counts corresponding to specific species and energy ranges associated \n with 3 of the MT coincidence modes. Actually the 13 referenced "count rates" are given as paired counts\n and accumulation times. Associated documentation suggests algorithms for computation of count rates and\n fluxes from the MT data given, for electrons in 3 energy bands (0.7-2.0, 2.0-12, 12-50 MeV), protons in 9 bands\n (11.24-20.00 MeV to 74.50-94.78 MeV), helium nuclei in 10 bands (10.90-12.89 MeV per n to 84.32-94.81 MeV per n),\n and CNO nuclei in 1 band (25 - 250 Mev per n). There are no azimuthally sectored data in this data set. \n The data are accessible via ftp and, with higher functionality, via FTPBrowser.

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/|2e83dcd073fdb122a7d6ce17b0e3e6f0
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 76237c2f-1d7d-44b5-8d93-7de8e7212b9a
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 4fb815ea3bb6148cf52823471279da39d3b0dfab8bccd0ac7ba75944036b38ab
Source Schema Version 1.1

Didn't find what you're looking for? Suggest a dataset here.