* Astronomy

Blobrana · L

RE: Asteroid 2010 HW20

Blobrana · L

The 16 - 36 metre wide asteroid 2010 HW20 will make a close pass (26.8 Lunar Distances, 0.0690 AU), travelling at 4.99 km/s, to the Earth-Moon system on the 23rd April, 2011 @ 16:14 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).

Blobrana · L

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2011 04 19    09 46 45.9 +46 21 49   0.07001 1.0207   101.8    74.4    23.0
2011 04 20    09 48 36.3 +44 04 44   0.06958 1.0216   102.4    73.8    22.9
2011 04 21    09 50 22.3 +41 45 44   0.06925 1.0224   102.9    73.3    22.9
2011 04 22    09 52 04.6 +39 25 10   0.06902 1.0232   103.4    72.8    22.9
2011 04 23    09 53 43.7 +37 03 26   0.06890 1.0240   103.9    72.3    22.9
2011 04 24    09 55 20.0 +34 40 58   0.06888 1.0249   104.4    71.8    22.9
2011 04 25    09 56 53.8 +32 18 13   0.06897 1.0257   104.9    71.4    22.8
2011 04 26    09 58 25.7 +29 55 35   0.06916 1.0265   105.3    71.0    22.8
2011 04 27    09 59 55.9 +27 33 33   0.06947 1.0273   105.6    70.6    22.8
2011 04 28    10 01 24.8 +25 12 33   0.06988 1.0281   106.0    70.3    22.8
2011 04 29    10 02 52.5 +22 52 58   0.07039 1.0288   106.3    70.0    22.9
2011 04 30    10 04 19.4 +20 35 12   0.07101 1.0296   106.5    69.7    22.9

Blobrana · L

The 16 - 36 metre wide asteroid 2010 HW20 will make a close pass (56.6 Lunar Distances, 0.1453 AU), travelling at 5.55 km/s, to the Earth-Moon system on the 20th November, 2010 @ 12:15 UT.

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

Blobrana · L

Asteroid 2010 HW20 has passed the Earth.

Blobrana · L

Orbital elements:
2010 HW20                                                Earth MOID = 0.0109 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5                 MPC
M 197.70729              (2000.0)            P               Q
n   0.97399435     Peri.   59.36177     -0.14796052     -0.98482360
a   1.0079332      Node    39.47146     +0.85152052     -0.17351121
e   0.0504019      Incl.    8.20473     +0.50301141     +0.00404234
P   1.01           H   26.1           G   0.15           U   6

MPEC 2010 - H65

The 16 - 36 metre wide asteroid 2010 HW20 will make a close pass (9.9 lunar distances, 0.0254 AU), travelling at 4.29 km/second, to the Earth-Moon system on the 28th April, 2010.

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