2.2.9 spase://NASA/NumericalData/ACE/EPAM/Ephemeris/PT11.5S ACE Electron Proton Alpha Monitor (EPAM) Ephemeris Data, 11.5 s Averages EPAM-EPH-12S 2020-07-07T21:14:07Z 12sec-averaged ephemeris data for the ACE spacecraft, Earth, and Jupiter. Also included are the orientation of the ACE spin-axis, and a rotation matrix for transforming from HEE cartisian coordinates to RTN coordinates. Thomas P. Armstrong, Fundamental Technologies LLC spase://SMWG/Person/Thomas.P.Armstrong DataProducer Explanation of EPAM print-groups and CSV file nomenclature. http://data.ftecs.com/VHO/VEPO/ace_epam/explanation-csv-files.html The Explanation HTML page at Fundamental Technologies describes how the numeric data from the ACE EPAM instrument are divided into different print-groups, the nomenclature of the ASCII-based comma-separated variable (CSV) files, and how those files can be accessed. spase://NASA/NumericalData/ACE/EPAM/Ephemeris/PT5M Other spase://NASA/NumericalData/ACE/EPAM/Ephemeris/PT1H Other spase://NASA/NumericalData/ACE/EPAM/Ephemeris/P1D Other spase://VEPO/NumericalData/ACE/EPAM/Ephemeris/PT12S spase://VSPO/NumericalData/ACE/EPAM/Ephemeris/PT11.5S spase://SMWG/Repository/FTECS Online Open ACE EPAM EPH 12sec-Averaged http://data.ftecs.com/VHO/VEPO/ace_epam/rates/12sec/ Folder containing CSV data files. Text ASCII Thomas P. Armstrong, Fundamental Technologies LLC spase://SMWG/Instrument/ACE/EPAM EnergeticParticles 1991-01-01T00:00:00.000 2008-12-31T23:59:59.000 PT12S Heliosphere.NearEarth Time for the record Time_EPH Time for the record given in year, day of year, hour, min, and decimal seconds. The given time represents the beginning of the averaging interval. PT12S 5 Year 1 1991 2008 -9999 Day of year 2 1 366 -999 Hour of day 3 0 23 -99 Minute of hour 4 0 59 -99 Seconds of minute 5 0.00 59.99 -99.99 Temporal Spacecraft X Component SC-Loc-X-pSEDR X-Coordinate of the spacecraft location in HEE coordinates from the predicted Supplimental Experimenter's Data Record (SEDR) km Cartesian HEE Positional Spacecraft Y Component SC-Loc-Y-pSEDR Y-Coordinate of the spacecraft location in HEE coordinates from the predicted Supplimental Experimenter's Data Record (SEDR) km Cartesian HEE Positional Spacecraft Z Component Loc-Z Z-Coordinate of the spacecraft location in HEE coordinates from the predicted Supplimental Experimenter's Data Record (SEDR) km Cartesian HEE Positional Earth X Component Earth-Loc-X-pSEDR X-Coordinate of the Earth in HEE coordinates from the predicted Supplimental Experimenter's Data Record (SEDR) km Cartesian HEE Positional Earth Y Component Earth-Loc-Y-pSEDR Y-Coordinate of the Earth in HEE coordinates from the predicted Supplimental Experimenter's Data Record (SEDR) km Cartesian HEE Positional Earth Z Component Earth-Loc-Z-pSEDR Z-Coordinate of the Earth in HEE coordinates from the predicted Supplimental Experimenter's Data Record (SEDR) km Cartesian HEE Positional Jupiter X Component Jupiter-Loc-X-pSEDR X-Coordinate of Jupiter in HEE coordinates from the predicted Supplimental Experimenter's Data Record (SEDR) km Cartesian HEE Positional Jupiter Y Component Jupiter-Loc-Y-pSEDR X-Coordinate of Jupiter in HEE coordinates from the predicted Supplimental Experimenter's Data Record (SEDR) km Cartesian HEE Positional Jupiter Z Component -Jupiter-Loc-Z-pSEDR X-Coordinate of Jupiter in HEE coordinates from the predicted Supplimental Experimenter's Data Record (SEDR) km Cartesian HEE Positional Starting Spin-Axis Longitude Spin-Lon-Start Longitude of the spacecraft spin-axis in HEE coordinates at the beginning of the time interval. deg Spherical HEE Positional Starting Spin-Axis Latitude Spin-Lat-Starts Latitude of the spacecraft spin-axis in HEE coordinates at the beginning of the time interval. deg Spherical HEE Positional Starting Spin-Axis Longitude Uncertainty Spin-Lon-Unc-Start Uncertainty in the longitude of the spacecraft spin-axis in HEE coordinates at the beginning of the time interval. deg Spherical HEE Positional Starting Spin-Axis Latitude Uncertainty Spin-Lat-Unc-Start Uncertainty in the latitude of the spacecraft spin-axis in HEE coordinates at the beginning of the time interval. deg Spherical HEE Positional Ending Spin-Axis Longitude Spin-Lon-Stop Longitude of the spacecraft spin-axis in HEE coordinates at the end of the time interval. deg Spherical HEE Positional Ending Spin-Axis Latitude Spin-Lat-Stop Latitude of the spacecraft spin-axis in HEE coordinates at the end of the time interval. deg Spherical HEE Positional Ending Spin-Axis Longitude Uncertainty Spin-Lon-Unc-Stop Uncertainty in the longitude of the spacecraft spin-axis in HEE coordinates at the end of the time interval. deg Spherical HEE Positional Ending Spin-Axis Latitude Uncertainty Spin-Lat-Unc-Stop Uncertainty in the latitude of the spacecraft spin-axis in HEE coordinates at the end of the time interval. deg Spherical HEE Positional Payload to RTN Rotation Operator Element a11 SC-RTN-a11 Row 1, Column 1 of the Payload to RTN rotation operator. Positional Payload to RTN Rotation Operator Element a12 SC-RTN-a12 Row 1, Column 2 of the Payload to RTN rotation operator. Positional Payload to RTN Rotation Operator Element a13 SC-RTN-a13 Row 1, Column 3 of the Payload to RTN rotation operator. Positional Payload to RTN Rotation Operator Element a21 SC-RTN-a21 Row 2, Column 1 of the Payload to RTN rotation operator. Positional Payload to RTN Rotation Operator Element a22 SC-RTN-a22 Row 2, Column 2 of the Payload to RTN rotation operator. Positional Payload to RTN Rotation Operator Element a23 SC-RTN-a23 Row 2, Column 3 of the Payload to RTN rotation operator. Positional Payload to RTN Rotation Operator Element a31 SC-RTN-a31 Row 3, Column 1 of the Payload to RTN rotation operator. Positional Payload to RTN Rotation Operator Element a32 SC-RTN-a32 Row 3, Column 2 of the Payload to RTN rotation operator. Positional Payload to RTN Rotation Operator Element a33 SC-RTN-a33 Row 3, Column 3 of the Payload to RTN rotation operator. Positional Payload to HEE Rotation Operator Element a11 SC-HEE-a11 Row 1, Column 1 of the Payload to HEE rotation operator. Positional Payload to HEE Rotation Operator Element a12 SC-HEE-a12 Row 1, Column 2 of the Payload to HEE rotation operator. Positional Payload to HEE Rotation Operator Element a13 SC-HEE-a13 Row 1, Column 3 of the Payload to HEE rotation operator. Positional Payload to HEE Rotation Operator Element a21 SC-HEE-a21 Row 2, Column 1 of the Payload to HEE rotation operator. Positional Payload to HEE Rotation Operator Element a22 SC-HEE-a22 Row 2, Column 2 of the Payload to HEE rotation operator. Positional Payload to HEE Rotation Operator Element a23 SC-HEE-a23 Row 2, Column 3 of the Payload to HEE rotation operator. Positional Payload to HEE Rotation Operator Element a31 SC-HEE-a31 Row 3, Column 1 of the Payload to HEE rotation operator. Positional Payload to HEE Rotation Operator Element a32 SC-HEE-a32 Row 3, Column 2 of the Payload to HEE rotation operator. Positional Payload to HEE Rotation Operator Element a33 SC-HEE-a33 Row 3, Column 3 of the Payload to HEE rotation operator. Positional Payload to EME Rotation Operator Element a11 SC-EME-a11 Row 1, Column 1 of the Payload to EME rotation operator. Positional Payload to EME Rotation Operator Element a12 SC-EME-a12 Row 1, Column 2 of the Payload to EME rotation operator. Positional Payload to EME Rotation Operator Element a13 SC-EME-a13 Row 1, Column 3 of the Payload to EME rotation operator. Positional Payload to EME Rotation Operator Element a21 SC-EME-a21 Row 2, Column 1 of the Payload to EME rotation operator. Positional Payload to EME Rotation Operator Element a22 SC-EME-a22 Row 2, Column 2 of the Payload to EME rotation operator. Positional Payload to EME Rotation Operator Element a23 SC-EME-a23 Row 2, Column 3 of the Payload to EME rotation operator. Positional Payload to EME Rotation Operator Element a31 SC-EME-a31 Row 3, Column 1 of the Payload to EME rotation operator. Positional Payload to EME Rotation Operator Element a32 SC-EME-a32 Row 3, Column 2 of the Payload to EME rotation operator. Positional Payload to EME Rotation Operator Element a33 SC-EME-a33 Row 3, Column 3 of the Payload to EME rotation operator. Positional