2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/DMSP_5D-2/SSJ4/PT1.0S NASA NumericalData DMSP SSJ/4 Particle Flux ASCII Files 2025-12-04T13:29:09Z 2020-07-07T21:14:32Z Only known prior ReleaseDate of the metadata 2025-12-04T13:29:09Z Added MetadataRightsList. Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB DMSP SSJ/4 30 eV - 30 keV ion and electron ASCII files, multiple DMSP spacecraft. Boundary crossing identifications also given spase://SMWG/Person/Patrick.Newell GeneralContact spase://VSPO/NumericalData/P_DMSP_HDR_SSJ4_JHUAPL_DDATA spase://VSPO/NumericalData/DMSP_5D-2/SSJ4/PT1.0S spase://SMWG/Repository/JHU_APL Online Open digital download site at JHU/APL http://sd-www.jhuapl.edu/Aurora/getdata/data_step1.html Text CALIBRATED spase://SMWG/Instrument/DMSP_5D-2/SSJ4 EnergeticParticles 1983-12-01T00:00:00 -P3M Data are several months behind current (as of 10/04) PT1.0S Earth.NearSurface