* Astronomy

Orbital elements:
2010 DE1                                                 Earth MOID = 0.1941 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 340.72892              (2000.0)            P               Q
n   0.53582048     Peri.  356.05678     -0.78094658     -0.58224272
a   1.5012621      Node   144.99854     +0.58329936     -0.80929159
e   0.2132653      Incl.   23.21349     +0.22334794     +0.07772093
P   1.84           H   23.9           G   0.15           U   9

MPEC 2010 - D46

The 43 - 96 metre wide asteroid 2010 DE1, discovered by the Mt. Lemmon Survey (MLS) on the 16th February, 2010, made a close pass (75.6 lunar distances, 0.1942 AU), travelling at 12.14 km/second, to the Earth-Moon system on the 13th February, 2010.

See more

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