Orbital elements:
2010 NJ1 Earth MOID = 0.1547 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 150.40053 (2000.0) P Q
n 1.03428572 Peri. 358.51655 -0.59981917 -0.78542620
a 0.9683723 Node 128.31259 +0.73609979 -0.61648789
e 0.5404950 Incl. 11.22334 +0.31364641 -0.05521212
P 0.95 H 20.3 G 0.15 U 5
The 230 - 510 metre wide asteroid 2010 NJ1 will make a close pass (62.6 lunar distances, 0.1608 AU), travelling at 15.96 km/second, to the Earth-Moon system on the 6th June, 2011 @ 18:43 UT ±03:03.
Orbital elements: 2010 NJ1 Earth MOID = 0.1463 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 99.34183 (2000.0) P Q n 1.05508611 Peri. 357.30527 -0.59565125 -0.78971037 a 0.9556029 Node 129.20674 +0.74045943 -0.61068710 e 0.5327752 Incl. 10.92252 +0.31131885 -0.05847044 P 0.93 H 20.2 G 0.15 U 9