Definitions for "(15810) 1994 JR1"
JR1, also written as 1994 JR1, is a Plutino, with 2:3 resonance with Neptune, similar to Pluto. It has a perihelion (closest approach to the Sun) at 34.756 AU and an aphelion (farthest distance from the Sun) at 44.507 List of Known Trans-Neptunian Objects, Johnston's Archive, updated September 21 2006, accessed January 25 2007, so it is in a relatively eccentric orbit. It is about 127 km in diameter, so it is unlikely to be classified as a dwarf planet due to its relatively small size.