2008 XQ2

Solar System
Dynamics
Group

2008 XQ₂

Asteroid 2008 XQ₂ was discovered on December 5, 2008 by Mt Lemmon Survey. This object has a diameter of about 310—700 meters.

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	20081210 20151022	2.315542880 -1.31 2.316866167	0.571420482 -1.14 0.571695442	14.5160520 -0.79 14.5191492	35.4852199 -1.19 35.4569201	355.5520301 -0.85 355.5995850	17.4153383 1.27 358.9079069	0″.63

Impact date: 2015 10 29.403(UT) V_impact= 15.999 km/sec Ψ_impact = 41°.77

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	20081210 20221024	2.801910826 -3.47 2.799118385	0.643684066 -2.51 0.645609056	15.2418942 -1.60 15.2742628	37.3485841 -2.48 37.2888481	356.0706804 -1.70 356.0679417	12.6820705 2.61 359.1620255	0″.69

Impact date: 2022 10 31.038(UT) V_impact= 16.772 km/sec Ψ_impact = 78°.72

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	20081210 20911022	2.354268119 -3.47 2.354340488	0.578213355 -2.51 0.578157074	14.5860862 -1.60 14.5551201	35.6735317 -2.48 34.8995876	355.6141594 -1.70 357.2038007	16.9313129 2.61 358.6031082	0″.63

Impact date: 2091 10 29.308(UT) V_impact= 15.974 km/sec Ψ_impact = 1°.81