* Astronomy

Blobrana · L

RE: Asteroid 2009 CB3

Blobrana · L

Orbital elements:
2009 CB3                                            PHA, Earth MOID = 0.0107 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 343.80122              (2000.0)            P               Q
n   0.89725497     Peri.  229.38889     +0.86196041     -0.48936007
a   1.0646139      Node   158.83806     +0.49943543     +0.86453697
e   0.7235669      Incl.   21.52921     -0.08711197     +0.11446635
P   1.10           H   19.5           G   0.15           U   4

MPEC 2010 - E15

Blobrana · L

The 330 - 750 metre wide asteroid 2009 CB3 will make a close pass (60.8 Lunar Distances, 0.1561 AU), travelling at 30.00 km/s, to the Earth-Moon system on the 7th March, 2010.

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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

Date	MJD		_imp	dist ± width			stretch	p_RE	exp. en	PS	TS
yr-mo-day	MJD		_imp	(RE)			(RE/)	p_RE	(MT)	PS	TS
2013-03-07.542	56358.542	2.610	0.038	8.26	±	190.613	7.57e+4	1.21e-9	4.01e-5	-4.39	0
2018-03-08.418	58185.418	2.744	0.164	33.64	±	199.094	1.82e+5	5.02e-11	1.80e-6	-6.09	0
2023-03-05.982	60008.982	2.744	0.188	2081.71	±	2720.833	6.72e+4	1.53e-11	5.47e-7	-6.80	0
2023-03-08.857	60011.857	2.777	0.188	38.88	±	201.421	3.04e+5	1.36e-11	4.99e-7	-6.84	0
2026-03-07.413	61106.413	2.501	0.146	27.33	±	179.740	3.54e+5	4.81e-11	1.49e-6	-6.43	0
2027-03-08.381	61472.381	2.669	0.045	9.73	±	192.579	3.94e+5	1.91e-10	6.54e-6	-5.83	0
2028-03-08.203	61838.203	2.792	0.181	37.68	±	202.148	4.54e+5	1.08e-11	3.98e-7	-7.07	0
2032-03-07.835	63298.835	2.709	0.056	11.95	±	195.159	5.76e+5	1.08e-10	3.80e-6	-6.17	0
2033-03-07.604	63663.604	2.797	0.187	632.21	±	183.511	5.73e+5	1.63e-11	6.04e-7	-6.99	0
2036-03-07.561	64759.561	2.640	0.041	8.82	±	189.698	6.36e+5	1.04e-10	3.51e-6	-6.27	0

Based on 23 optical observations (of which 0 are rejected as outliers) from 2009-02-04.500 to 2009-02-05.558.

Source

-- Edited by Blobrana at 18:58, 2009-02-06

Blobrana · L

2009 CB3
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.66
Palermo Scale (cumulative)	-4.14
Impact Probability (cumulative)	1.1e-08
Number of Potential Impacts	33

V_impact	32.28 km/s
V_infinity	30.30 km/s
H	19.2
Diameter	0.487 km
Mass	1.6e+11 kg
Energy	1.9e+04 MT
all above are mean values weighted by impact probability

Analysis based on
20 observations spanning 1.0339 days
(2009-Feb-04.49919 to 2009-Feb-05.5331)

Source

Blobrana · L

Asteroid 2009 CB3 = 9C980EB (NEOCPO)

Orbital elements:
2009 CB3                                            PHA, Earth MOID = 0.0124 AU
Epoch 2009 Jan. 29.0 TT = JDT 2454860.5                 MPC
M  49.14266              (2000.0)            P               Q
n   1.10703671     Peri.  223.26568     +0.92160355     -0.36346925
a   0.9254679      Node   156.95707     +0.37584337     +0.92328681
e   0.7074772      Incl.   20.35508     -0.09689507     +0.12422388
P   0.89           H   19.5           G   0.15
From 20 observations 2009 Feb. 4-5.

MPEC 2009 -C54