The 100 - 220 metre wide asteroid 2014 NB52 made a close pass (74.0 lunar distances, 0.1901 AU), travelling at 16.85 km/second, to the Earth-Moon system on the 17th July 2014 @ 09:45 UT ±00:03.
Orbital elements:
2014 NB52 PHA, Earth MOID = 0.0455 AU
Epoch 2014 May 23.0 TT = JDT 2456800.5 MPC
M 267.92270 (2000.0) P Q
n 0.70584236 Peri. 115.51298 +0.74131696 -0.53466642
a 1.2492928 Node 279.39461 +0.36546099 +0.82856153
e 0.3718499 Incl. 24.28030 +0.56292756 +0.16618545
P 1.40 H 21.9 G 0.15 U 7
