The location of a magnetic dipole in a planetocentric coordinate xyz that corotates with the planet. (IMAGE)
Caption
The dipole is located at point with the axial orientation along , which is determined by its polar angle and azimuthal angle in the planetocentric coordinate. In the frame of , we can set up a dipole coordinate (see the details in the text). Note that the origin of the dipole coordinate is at point O (center of the planet). The magenta line labels the trajectory of the spacecraft. At the moment of ti, the spacecraft makes a magnetic field measurement at location , whose relative position vector to the dipole center is .
Credit
Beijing Zhongke Journal Publising Co. Ltd.
Usage Restrictions
Credit must be given to the creator.
License
CC BY