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/Weygand/IMP8/PLS/Processed/GSE/PT60S NASA NumericalData IMP-8 Linearly Interpolated 60 s Resolution PLS data in GSE Coordinates 1973-078A-02 data IMP-8 Plasma Faraday Cup data https://doi.org/10.21978/p8vw41 2025-12-04T13:32:45Z 2021-05-31T12:34:56.789 Updated to SPASE Version 2.3.2 if needed, Applied quality control for DOI usage, LFB 2025-08-05T13:12:57Z Added ObservedRegion(s). Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to value in Version tag. ZCB 2025-12-04T13:32:45Z Added MetadataRightsList. Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB IMP-8 linearly interpolated to have the measurements on the minute at 60 s resolution PLS data in GSE coordinates. This data set consists of processed solar wind data that has been linearly interpolated to 1 min resolution at the position of the spacecraft using the interp1.m function in MATLAB. This data set was originally constructed by Dr. J.M. Weygand for Prof. R.L. McPherron, who was the principle investigator of two National Science Foundation studies: GEM Grant ATM 02-1798 and a Space Weather Grant ATM 02-08501. These data were primarily used in superposed epoch studies and cross correlation studies on solar wind. NASA, Alan J. Lazarus, James M. Weygand Weygand, James M.; & McPherron, Robert L. 2006-01-01T00:00:00 University of California, Los Angeles spase://SMWG/Person/Alan.J.Lazarus PrincipalInvestigator spase://SMWG/Person/James.M.Weygand MetadataContact IMP-8 solar wind propagation information http://www.igpp.ucla.edu/jweygand/htmls/Propagated_SW.html Solar wind archive at UCLA. This archive provides a list of available data resources and available time ranges. spase://VMO/NumericalData/Weygand/IMP8/PLS/Processed/GSE/PT60S spase://VSPO/NumericalData/Weygand/IMP8/PLS/Processed/GSE/PT60S spase://SMWG/Repository/UCLA/VMO Online Open IGPP UCLA IMP-8 Plasma Data JMW Processed Solar Wind Archive http://vmo.igpp.ucla.edu/data1/Weygand/ProcessedSolarWindGSE/IMP8/plasma/ Text ASCII NASA, Alan J. Lazarus, James M. Weygand Calibrated IMP-8 Solar Plasma Faraday Cup Investigation Level-2 spase://SMWG/Instrument/IMP8/PLS ThermalPlasma 1973-11-01T00:00:00.000 2002-07-31T23:59:00.000 Time format in data files is: Day Month Year Hour Minute Second (DD MM YYYY HH MM SS.SSS) PT60S Earth.Magnetosheath Heliosphere.NearEarth Flags=1.000e+34 1 min solar wind magnetotail bow shock magnetopause IMP-8 plasma data Universal Time Time Interpolated universal time columns from left to right are: day month year hour minute sec in the format of dd mm yyyy hh mm ss. PT60S 6 Universal Time expressed using a 6-column day, month, year, hour, minute, second representation Day 1 Day Month 2 Month Year 3 Year Hour 4 Hour Minute 5 Minute Second 6 Second Temporal IMP-8 PLS Density Interpolated to 1 min Resolution in GSE Coordinates Density Density for IMP-8 PLS in units of number per cubic centimeter in GSE coordinates. PT60S #/cm^-3 Ion NumberDensity IMP-8 PLS Thermal Speed Interpolated to 1 min Resolution in GSE Coordinates. Thermal Speed IMP-8 PLS thermal speed in units of km/s in GSE coordinates. Be sure you understand the instrument PT60S KM/S Ion ThermalSpeed IMP-8 Velocity Vector Interpolated to 1 min Resolution n GSE Coordinates Velocity Vectors Flow vector for IMP-8 PLS in GSE coordinates in units of km/s. Be sure you understand the instrument PT60S KM/S Cartesian GSE 3 VX-GSE Component.I 1 nvxgse VY-GSE Component.J 2 nvygse VZ-GSE Component.K 3 nvzgse Ion Velocity IMP-8 Spacecraft Position Vector Interpolated to 1 min Resolution in GSE Coordinates Position Vectors Location of the spacecraft in GSE coordinates in units of Re PT60S Re Cartesian GSE 3 X-GSE Component.I 1 nxgse Y-GSE Component.J 2 nygse Z-GSE Component.K 3 nzgse Positional