The POLAR orbital parameter plots show the radial distance, eccentric dipole (ED) magnetic local time (MLT), and eccentric dipole L-shell value. The darker segments correspond to times when one of the magnetic footpoints (traced down to 100 km altitude using the T89, Kp=3-,3,3+, model) falls in one of the following regions: cusp, cleft, or auroral oval.
Last updated: August 23, 2005