2009 BD

Solar System
Dynamics
Group

2009 BD

Orbital elements of impact orbit for two dates (equ. J2000)

	Epoch [TT]	a [AU]	e	i [deg]	Ω [deg]	ω [deg]	M [deg]	rms
dev/σ	20090218 20640427	1.013069479 -1.29 1.028743006	0.043085769 -0.53 0.034663750	0.3766620 -0.28 2.3604335	64.7628790 -0.30 226.4723917	111.7414947 0.29 301.5813704	335.4184418 0.37 45.5172734	0″.54

Impact date: 2064 05 05.049 (UT) V_impact= 11.247 km/sec Ψ_impact = 42°.85

dev/σ: Deviation from the nominal orbit parameter divided by the respective uncertainty.

V_impact: The velocity of the asteroid relative to the Earth at the moment of impact.

Ψ_impact: The impact angle is measured from the vertical axis that goes through the impact point. Thus, the impact angle is 0 degrees for a vertical impact.

Orbital elements of impact orbit for two dates (equ. J2000)

	Epoch [TT]	a [AU]	e	i [deg]	Ω [deg]	ω [deg]	M [deg]	rms
dev/σ	20090218 20760411	1.013069356 -0.50 0.976423426	0.043083985 -0.02 0.062804386	0.3765912 0.05 1.1757763	64.7439752 0.04 210.7560869	111.7580135 -0.04 238.9053493	335.4205495 -0.03 104.5279852	0″.54

Impact date: 2076 04 18.588 (UT) V_impact= 11.181 km/sec Ψ_impact =53°.60

Orbital elements of impact orbit for two dates (equ. J2000)

	Epoch [TT]	a [AU]	e	i [deg]	Ω [deg]	ω [deg]	M [deg]	rms
dev/σ	20090218 20800427	1.013069302 -0.15 1.037569676	0.043084887 -0.28 0.040374946	0.3766572 -0.25 2.2183016	64.7604185 -0.26 226.5987475	111.7432429 0.26 311.4678455	335.4190441 0.26 35.4749963	0″.54

Impact date: 2080 05 05.381 (UT) V_impact= 11.238 km/sec Ψ_impact =1°.09