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Post Info TOPIC: Asteroid 2003 AK18


L

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RE: Asteroid 2003 AK18
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The 310 - 700 metre wide asteroid 2003 AK18 will make a close pass (22.2 lunar distances, 0.0570 AU), travelling at 11.67 km/second, to the Earth-Moon system on the 28th December, 2011 @ 17:29 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).



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Date UT     R.A. (J2000) Decl.   Delta  r    El.   V

2011 12 30  21 58 05.6 +82 23 50 0.058 1.003 108.3 15.9
2011 12 31  01 04 41.7 +81 18 22 0.059 1.009 113.9 15.8
2012 01 01  02 40 02.3 +76 57 57 0.061 1.014 118.9 15.8
2012 01 02  03 22 23.6 +71 58 58 0.064 1.020 123.4 15.7
2012 01 03  03 44 53.5 +67 08 43 0.067 1.025 127.2 15.7
2012 01 04  03 58 41.2 +62 40 05 0.071 1.031 130.4 15.8
2012 01 05  04 08 01.1 +58 36 21 0.075 1.036 132.9 15.9
2012 01 06  04 14 47.5 +54 57 22 0.080 1.041 134.9 15.9


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Asteroid 2003 AK18
Minimum distance: 0.05703 AU
Date: 28th December 2011 @ 17:29 UT
Maximum magnitude: 15.8 V
Date of maximum magnitude: 30th December, 2011 @ 15:00 UT
Maximum angular velocity: 17.38 "/min
Date of maximum angular velocity: 28th December 2011 @ 09:00 UT
Absolute magnitude: 19.7 (~389m)

Orbital elements:
2003 AK18
Epoch 2003 Jan. 1.0 TT = JDT 2452640.5 MPC
M 103.39325 (2000.0) P Q
n 1.19842018 Peri. 23.80070 +0.82372031 +0.55648444
a 0.8778022 Node 301.94426 -0.53860148 +0.70806845
e 0.3840114 Incl. 7.35794 -0.17718152 +0.43470005
P 0.82 H 19.8 G 0.15
From 24 observations 2003 Jan. 7-8.

MPEC 2003-A52


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