S/2003 J 12

S.2003 J 12 is a natural satellite of Jupiter, and is one of the smallest known natural satellites in the Solar System. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2003.
S/2003 J 12 is about 1 kilometre (0.6 miles) in diameter, and orbits Jupiter at an average distance of 17,883 Mm in 489.72 days, at an inclination of 143° to the ecliptic (143° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.4920.
It is the innermost of the outer irregular retrograde satellites of Jupiter, and does not seem to belong to any group.
This moon has not been seen since its discovery in 2003 and is currently considered lost. Follow-up observations in 2018 are planned to secure its orbit.
== In the Timeline ==
=== Space Travel (1969) ===
In Space Travel, as ship is tested by travelling to various planets and moons in the Solar System. Jupiter was one of the planets used in the testing process so it is probable that some of its moons were used as well.
== Notes ==
* This page was originally taken from Wikipedia. Link: https://en.wikipedia.org/wiki/S/2003_J_12