2.2.9 spase://NASA/NumericalData/AMPTE-IRM/MAG/PT4.4S AMPTE-IRM Magnetic Field 2020-07-07T21:14:16Z AMPTE-IRM spin-averaged magnetic field at ~4.4 second resolution. User will acknowledge the AMPTE/IRM magnetometer team in any publication resulting from the use of these data. spase://SMWG/Person/Hermann.Luehr PrincipalInvestigator spase://SMWG/Person/Lynn.M.Kistler DataProducer AMPTE/IRM page at University of New Hampshire http://www-ssg.sr.unh.edu/index.html?tof/Missions/Ampte-irm Information on the AMPTE/IRM data spase://VMO/NumericalData/AMPTE_IRM/MAG/PT4.4S spase://VMO/NumericalData/AMPTE-IRM/MAG/PT4.4S spase://VSPO/NumericalData/AMPTE-IRM/MAG/PT4.4S spase://SMWG/Repository/NASA/GSFC/VHO-VMO Online Open AMPTE/IRM Data https://vmo.nasa.gov/mission/ampte_irm/ A web-accessible directory hosting AMPTE/IRM spin-averaged magnetic field and plasma data. Text ASCII spase://SMWG/Instrument/AMPTE-IRM/MAG Ephemeris MagneticField 1984-08-21T00:48:41Z 1986-08-11T21:45:07Z PT4.4S Earth.Magnetosheath Earth.Magnetosphere Earth.Magnetosphere.Magnetotail Heliosphere.NearEarth The spin period changed from ~4.3s to ~4.7s during the mission. IRM time stamps are UT at time of ground receipt. Thus for time-critical science, the IRM times need to be corrected by subtracting the light travel time from the spacecraft to the ground-station (at Weilheim in Germany apart special events requiring NASA DSN). For the transmission frequencies used, the vacuum light speed is appropriate. At apogee, this correction is more than a third of a second. There are no other known time delays. Magnetic field Time Column 1 The center of the accumulation time interval for the data point, in DA/MO/YR HR:MI:SS format. Temporal DT Column 2 The accumulation time for the measurement, normally one spin s Temporal Xgse Column 3 The X component of spacecraft location in GSE, in Re (Re=6378 km) Re 6.378e6>m Cartesian GSE 1 Xgse Component.I 1 Positional Ygse Column 4 The Y component of spacecraft location in GSE, in Re (Re=6378 km) Re 6.378e6>m Cartesian GSE 1 Ygse Component.J 1 Positional Zgse Column 5 The Z component of spacecraft location in GSE, in Re (Re=6378 km) Re 6.378e6>m Cartesian GSE 1 Zgse Component.K 1 Positional Rgse Column 6 Radial distance in SM, in Re (Re=6378 km) Re 6.378e6>m Spherical SM Magnitude Positional MLAT Column 7 Magnetic latitude in SM, in degrees Spherical SM DirectionAngle.ElevationAngle Positional MLT Column 8 Magnetic Local Time in SM, in hours hour 15>deg Spherical SM DirectionAngle.AzimuthAngle Positional Bx Column 9 Magnetic field cartesian GSE X component nT 1.0e-9>T Cartesian GSE Component.I Magnetic By Column 10 Magnetic field cartesian GSE Y component nT 1.0e-9>T Cartesian GSE Component.J Magnetic Bz Column 11 Magnetic field cartesian GSE Z component nT 1.0e-9>T Cartesian GSE Component.K Magnetic