* Astronomy

Orbital elements:
2013 HT25                                                Earth MOID = 0.0000 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M  13.12001              (2000.0)            P               Q
n   0.31422752     Peri.   61.36717     +0.00381016     -0.99944088
a   2.1427585      Node    28.47280     +0.89143173     -0.01165782
e   0.8498428      Incl.    3.99541     +0.45313900     +0.03133734
P   3.14           H   28.8           G   0.15
From 8 observations 2013 Apr. 19.

MPEC 2013 - J24

Key to Orbital elements

The 4 - 9 metre wide asteroid 2013 HT25 made a close pass (0.00036 AU), travelling at 29.60 km/second, to the Earth-Moon system on the 18th April, 2013 @ 13:43 UT ±00:23. 

See more

The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).