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Post Info TOPIC: Asteroid 2011 TB4


L

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RE: Asteroid 2011 TB4
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The 21 - 47 metre wide asteroid 2011 TB4 will make a close pass (4.9 lunar distances, 0.0125 AU) travelling at 13.48 km/second, to the Earth-Moon system on the 9th October 2014 @ 21:45 UT ±00:01. 

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

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     Mag
2014 10 07    02 50 54.8 +29 27 53   0.02616 1.0205   142.5    36.6    19.1
2014 10 08    03 35 28.8 +41 12 32   0.02105 1.0128   129.3    49.7    19.0
2014 10 09    05 16 20.4 +55 14 51   0.01810 1.0051   109.1    69.9    19.3
2014 10 10    08 24 10.0 +59 48 34   0.01835 0.9974    85.3    93.6    20.1
2014 10 11    10 38 01.2 +50 55 29   0.02170 0.9897    65.8   113.1    21.5
2014 10 12    11 36 08.0 +41 16 08   0.02702 0.9821    52.8   125.9    22.9
2014 10 13    12 04 45.8 +34 14 53   0.03339 0.9744    44.7   133.9    24.2
2014 10 14    12 21 19.6 +29 19 39   0.04032 0.9668    39.5   139.0    25.2
2014 10 15    12 32 02.3 +25 47 05   0.04757 0.9592    36.0   142.4    26.0


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L

Posts: 131433
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Orbital elements:
2011 TB4                                                 Earth MOID = 0.0081 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 293.64807              (2000.0)            P               Q
n   0.65945913     Peri.   90.62153     -0.21180464     -0.97701579
a   1.3072063      Node    11.69066     +0.84279258     -0.19506089
e   0.4550569      Incl.    6.81968     +0.49481255     -0.08597318
P   1.49           H   25.5           G   0.15           U   8

MPEC 2011 - T25

The 21 - 48 metre wide asteroid 2011 TB4 will make a close pass (5.2 lunar distances, 0.0133 AU), travelling at 13.12 km/second, to the Earth-Moon system on the 10th October, 2011 @ 23:29 UT ±00:13.

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



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