About LEMS30 LEMS30 counts ions at 30 degrees from the space-craft spin axis . P1 56-78 keV ions P2 78-130 keV ions P3 130-214 keV ions P4 214-337 keV ions P5 337-594 keV ions P6 594-1073 keV ions P7 1.073-1.802 MeV ions P8 1.802-5.0 MeV ions LEMS30