Cassini : orbit reference frames in AMDA

• IAU_SATURN
  Body-fixed frame.

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• KSO
  Kronocentric Solar Orbital Coordinates
  KSO is a cartesian Saturn-centered coordinate system where X points from Saturn to the Sun, Z is parallel to Saturn's orbital plane upward normal, and Y completes the right handed set

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• KSM
  Kronocentric Solar Magnetospheric Coordinates
  KSM is a cartesian Saturn-center coordinate system where X points from Saturn to the Sun, the X-Z plane contains Saturn's centered magnetic dipole axis, M, and Y completes right handed set. For consistency with the custom software at the PPI Node of PDS the Saturn's centered magnetic dipole axis is set to 180 degrees longitude, 89.99 degrees latitude in the IAU_SATURN frame. Note that other source make assume that the dipole axis is parallel to the spin axis.

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• KRTP
  Kronocentric body-fixed, J2000 spherical Coordinates
  KRTP magnetic field vector components form the standard right-handed spherical triad (R, Theta, Phi) for a planet-centered system. Namely, R is radial (along the line from the center of Saturn to the center of the spacecraft), and positive away from Saturn. Phi, the azimuthal component, is parallel to the Kronographic equator (Omega x R) and positive in the direction of corotation. Theta, the 'southward' component, completes the right-handed set.

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• SZS
  Saturn Equatorial System Frame
  The primary axis, labeled Z, is parallel to the Saturn spin axis. The Y-axis is then defined as the cross product of this vector with the Saturn-Sun vector. The X-axis completes the right-handed system and is directed "towards" the Sun