Orbital elements:
2010 NR1 Earth MOID = 0.1248 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 272.02082 (2000.0) P Q
n 0.47081916 Peri. 242.93743 +0.78416546 +0.61272501
a 1.6364395 Node 79.11307 -0.52800705 +0.74198504
e 0.3262619 Incl. 5.74195 -0.32602620 +0.27207768
P 2.09 H 21.8 G 0.15 U 0
The 110 - 250 metre wide asteroid 2010 NR1 will make a close pass (48.5 lunar distances, 0.1247 AU), travelling at 4.16 km/second, to the Earth-Moon system on the 31st July, 2010 @ 09:41 UT.
Orbital elements: 2010 NR1 Earth MOID = 0.1242 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 349.46763 (2000.0) P Q n 0.47191330 Peri. 242.81338 +0.78368980 +0.61334861 a 1.6339092 Node 79.19147 -0.52867468 +0.74158731 e 0.3255612 Incl. 5.73482 -0.32608798 +0.27175677 P 2.09 H 21.9 G 0.15 U 7