* Astronomy

Blobrana · L

RE: Asteroid 2008 AO112

Blobrana · L

Orbital Elements at Epoch 2454477.5 (2008-Jan-12.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)

Element	Value	Uncertainty (1-sigma)	Units
e	.3650064760284402	0.68571
a	1.388929011873299	1.5078	AU
q	.8819609277957625	0.00525	AU
i	4.771294225194977	2.1917	deg
node	94.56989891761998	13.64	deg
peri	342.595714356839	17.762	deg
M	4.048676493111987	15.443	deg
t_p	2454470.775978761637 (2008-Jan-05.27597877)	15.404	JED
period	597.8861610526126 1.64	973.57 2.665	d yr
n	.6021213124689148	0.98046	deg/d
Q	1.895897095950835	2.0581	AU

Blobrana · L

The 130 metre wide asteroid 2008 AO112 will make a close pass (2.66 Lunar Distances) to the Earth-Moon system on the 7th July, 2010.

 Date__(UT)__HR:MN     R.A._(ICRF/J2000.0)_DEC  APmag 
 2010-Jul-05 00:00     15 55 00.92 -18 18 03.2  22.59 
 2010-Jul-06 00:00     15 54 11.52 -18 19 16.9  22.62 
 2010-Jul-07 00:00     15 53 25.08 -18 20 36.8  22.65 
 2010-Jul-08 00:00     15 52 41.62 -18 22 03.0  22.68 
 2010-Jul-09 00:00     15 52 01.13 -18 23 35.6  22.71 
 2010-Jul-10 00:00     15 51 23.59 -18 25 14.6  22.74

Blobrana · L

2008 AO112
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.62
Palermo Scale (cumulative)	-4.30
Impact Probability (cumulative)	1.5e-07
Number of Potential Impacts	45

V_impact	11.60 km/s
V_infinity	3.22 km/s
H	20.2
Diameter	0.310 km
Mass	4.1e+10 kg
Energy	6.5e+02 MT
all above are mean values weighted by impact probability

Analysis based on
8 observations spanning 1.0097 days
(2008-Jan-11.08899 to 2008-Jan-12.098698)

Blobrana · L

Orbital elements:

2008 AO112                                          PHA, Earth MOID = 0.0451 AU
Epoch 2007 Dec. 26.0 TT = JDT 2454460.5                 MPC
M 354.17310              (2000.0)            P               Q
n   0.44202163     Peri.  346.08635     +0.20946936     -0.97372521
a   1.7067649      Node    91.76602     +0.90546062     +0.15866542
e   0.4820989      Incl.    5.12813     +0.36913908     +0.16335390
P   2.23           H   20.0           G   0.15
From 8 observations 2008 Jan. 11-12.

MPEC 2008 - D33

2008 AO112
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-2.89
Palermo Scale (cumulative)	-2.88
Impact Probability (cumulative)	3.9e-07
Number of Potential Impacts	46

V_impact	11.59 km/s
V_infinity	3.20 km/s
H	20.2
Diameter	0.310 km
Mass	4.1e+10 kg
Energy	6.5e+02 MT
all above are mean values weighted by impact probability

Analysis based on
8 observations spanning 1.0097 days
(2008-Jan-11.08899 to 2008-Jan-12.098698)

Source

The 310 metre wide asteroid 2008 AO112 was discovered on 12th January, 2008, by the Mount Lemmon Survey.
The asteroid will make a close pass to the Earth on the 25th June, 2009.