* Astronomy

Orbital elements:
2013 DB                                                  Earth MOID = 0.0114 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M  68.11111              (2000.0)            P               Q
n   0.82443528     Peri.  336.75195     -0.56636411     -0.81803447
a   1.1264148      Node   147.48667     +0.78241016     -0.57190833
e   0.1200846      Incl.   10.75002     +0.25897111     -0.06115926
P   1.20           H   25.9           G   0.15           U   5

MPEC 2013 - D13

Key to Orbital elements

The 18 - 39 metre wide asteroid 2013 DB made a close pass (5.0 lunar distances, 0.0128 AU), travelling at 6.04 km/second, to the Earth-Moon system on the 16th February, 2013 @ 01:21 UT ±00:02. 

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