WISE, a mission that will find ALL the neighbours Options

[ngunn]

I'm used to reading excellent articles by Emily, but this one I found to be of truly extraordinary interest:

http://www.planetary.org/blog/article/00002070/

[Holder of the Tw...]

The July 23rd discovery was asteroid 2010 OR1, which has a period about 30 years and an inclination around 143 degrees.

The July 30th discovery most likely was actually a reobservation of asteroid 2010 LG61, which was discovered by WISE back in June, but whose orbit at the time was nearly impossible to fit properly. They originally thought it was very small, in a prograde Aten type orbit. WISE got an additional look on the 26th which finally got the orbit right. It is a much larger rock than they thought with a period around 19 years (this is short period?) and inclined 123.7 degrees.

I can find no other candidate for the July 30th asteroid.

These are impressive, but not record holders. Other examples would be the recently discovered 2010 EB46, found by the Catalina Sky Survey back in March, which has a period 16.7 years and an inclination of 156 degrees, both of which best 2010 LG61. Then you have 2008 SO218, which beats out 2010 OR1 both on period (23 years) and on inclination, which is 170.4 degrees and nearly in the ecliptic going backwards.