Orbital elements:
2011 SR5 PHA, Earth MOID = 0.0010 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 245.90439 (2000.0) P Q
n 0.77074219 Peri. 305.46072 -0.58269226 -0.81269102
a 1.1781393 Node 180.20540 +0.80862638 -0.57998963
e 0.7057935 Incl. 29.10194 -0.08119794 +0.05608327
P 1.28 H 20.7 G 0.15 U 3
The 220 - 490 metre wide asteroid 2011 SR5 will make a close pass (23.0 lunar distances, 0.0591 AU), travelling at 25.40 km/second, to the Earth-Moon system on the 25th September, 2011 @ 08:51 UT ±00:15.
Orbital elements:
2011 SR5 PHA, Earth MOID = 0.0010 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 297.35080 (2000.0) P Q
n 0.77414369 Peri. 305.79207 -0.58747755 -0.80923842
a 1.1746856 Node 180.21339 +0.80499237 -0.58462215
e 0.7072278 Incl. 29.23715 -0.08280950 +0.05788027
P 1.27 H 20.5 G 0.15 U 9