# S/2003 J18, Moon of Jupiter

S/2003 J18 is a Moon that orbits round the planet Jupiter. Its orbit circumference, the total distance it travels round its planetary parent is 128,434,650.92 km. The furthest it gets from its orbital parent (apoasis) is 22,576,190 km. Its mass is estimated/calculated at being 14,986,684,330,972 kg. Its density has been calculated at being 2.6 g/cm3. Its volume is 4 km3.

S/2003 J18 was discovered on April 2003 by Brett Joseph Gladman.

The Semi-Major Axis of the orbit is 20,494,000 km, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of S/2003 J18 is 6.3 km. The mean radius, that is the average radius of S/2003 J18 is 1.0 (assuming an albedo of 0.04) km. The surface area of S/2003 J18 is 12.57 km2. The surface gravity of the said item is 0.001 m/s2. The average orbit velocity, that is the speed at which it orbits is 8,947.3 km/h.

The orbital inclination, the angle at which S/2003 J18 orbits in relation to the orbital plane is 146.007 degrees. The orbital eccentricity is 0.1016, it is the degree at which S/2003 J18 orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

## S/2003 J18 Facts

 Type Moon Orbital Circumference 128,434,650.92 km Furthest from parent (Apoasis) 22,576,190 km Mass 14,986,684,330,972 kg Density 2.6 g/cm3 Volume 4 km3 Date of Discovery April 2003 Discoverer Brett Joseph Gladman Semi-Major Axis 20,494,000 km Equatorial Circumference 6.3 km Mean Radius 1.0 (assuming an albedo of 0.04) km Surface Area 12.57 km2 Surface Gravity 0.001 m/s2 Average Orbit Velocity 8,947.3 km/h Orbital Inclination 146.007 Orbital Eccentricity 0.1016