The flight rule for keep-out zone is defined as following:
- When cassini is 8 Rs from the Saturn, and within 1 Rs from the ring plane, Spacecraft -YAxis
must not be within 80.0 degree looking into Dust ram direction
- SC X axis must not be within 90 degree from SC-Sun line
- SC -Y axis must not be withing 30.0 degree from SC-Sun line
Any of the condition happens, it is a keep out zone.
* Ring plane is the same as the equatorial (spin) plane.