Amalthea
MEAN RADIUS: 67 x 131 km
MASS: ? (Earth=1)
DENSITY: ? (gm/cm)
GRAVITY: ? (Earth=1)
ORBIT PERIOD: 0.498 (Earth days)
ROTATION PERIOD: 0.498 (Earth days)
SEMIMAJOR AXIS OF ORBIT: 181,300 km
ECCENTRICITY OF ORBIT: 0.003