This is a dawn-dusk orbit that traverses the South Atlantic Anomaly region near the ascending node; the spacecraft pointing strategy is "j-perp", with no ram avoidance constraint. Again, the removal of the ram constraint makes the spacecraft motion very simple, and allows the magnetic field to be followed (perpendicular, parallel, or antiparallel as before) continuously except for transitions and the 180° flips as the equator is crossed in the low-field region.
new 9 March 1999