2.3.1 spase://CNES/NumericalData/CDPP-AMDA/Planets/earth-info-mag earth dipole Geomagnetic Properties 2020-07-31T00:00:00Z For characterizing the attitude of the Earth Magnetic dipole relatively to the Earth-Sun axis, 2 angles can be used. The magnetic moment of the Earth is a vector opposite to the unit vector carrying the ZSM axis (SM: Solar Magnetic reference frame). The tilt angle is the angle between the ZSM (the opposite of the Earth magnetic moment) and ZGSM directions. The roll angle is the angle between the projection of the Earth magnetic moment on the YZGSE plane and the ZGSE direction. It is also the angle between the XZGSM and the XZGSE planes or the XYGSM and XYGSE planes. Earth dipole tilt and roll angles are calculated with the use of GEOPACK-2008 package. TBD spase://CNES/Person/Nikolai.Tsyganenko PrincipalInvestigator spase://CNES/Person/Christian.Jacquey TechnicalContact Description http://amda-test.irap.omp.eu/help/parameters/tilt_dipole.pdf Code source http://geo.phys.spbu.ru/~tsyganenko/Geopack-2008.html Code source with detailed description spase://SMWG/Repository/CNES/CDPP-AMDA Online Open AMDA at CDPP http://amda.cdpp.eu Text IRAP spase://CNES/Instrument/CDPP-AMDA/Planets/Earth MagneticField 1970-01-01T00:00:00Z 2025-01-01T00:00:00Z PT1M Earth tilt angle tilt_angle_60 The angle between the ZSM (the opposite of the Earth magnetic moment) and ZGSM directions deg roll angle roll_angle_60 The angle between the projection of the Earth magnetic moment on the YZGSE plane and the ZGSE direction deg