RADZONE - Ephin levels (in any of the E1300,P4GM,P41GM channels) are more than 1/3 of RADMON safing thresholds.
RADMON - Radmon is disabled for radiation zone (for comparison with actual radiation levels).
SCA00 - Ephin SCA00 channel is saturated (@8372224).
PERIGEE - Time of closest earth approach (for comparison).