NEODyS

NEODyS-2

Near Earth Objects - Dynamic Site

NEODyS ∴ Objects ∴ 1998HT31 ∴ Orbital info ∴ Epoch 50936 MJD

1998HT31 ▹

ORBITAL INFORMATION

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(ASCII data file 1998HT31.eq0)

Keplerian elements
(Epoch 50936.2 MJD)
	Value	1-σ variation	Units
a	2.50881	0.00827	au
e	0.692503	0.001098
i	6.788	0.009309	deg
Ω	213.905	0.0009373	deg
ω	80.421	0.001679	deg
M	348.098	0.06465	deg

Other useful info
Absolute Magnitude (H)	20.8	mag
Slope parameter (G)	0.15	mag
Perihelion distance	0.7715	au
Aphelion distance	4.2462	au
Asc. node-Earth separation	0.16497	au
Desc. node-Earth separation	0.48186	au
Earth MOID	0.03114	au
Orbital period	1451.44	days
Date of orbit computation	feb 26 10:21

Covariance matrix
6.83860496E-05	9.08020113E-06	7.69842082E-05	7.73549377E-06	-1.38448735E-05	5.34602543E-04
9.08020113E-06	1.20565609E-06	1.02218484E-05	1.02710200E-06	-1.83827433E-06	7.09837537E-05
7.69842082E-05	1.02218484E-05	8.66652243E-05	8.71044576E-06	-1.55890970E-05	6.01818042E-04
7.73549377E-06	1.02710200E-06	8.71044576E-06	8.78511357E-07	-1.57134804E-06	6.04717347E-05
-1.38448735E-05	-1.83827433E-06	-1.55890970E-05	-1.57134804E-06	2.81746180E-06	-1.08231893E-04
5.34602543E-04	7.09837537E-05	6.01818042E-04	6.04717347E-05	-1.08231893E-04	4.17921322E-03

Correlation matrix
1.00000000	0.99999997	0.99998954	0.99800012	-0.99741573	0.99999999
0.99999997	1.00000000	0.99998913	0.99799454	-0.99740050	0.99999994
0.99998954	0.99998913	1.00000000	0.99826135	-0.99763002	0.99998965
0.99800012	0.99799454	0.99826135	1.00000000	-0.99877964	0.99800214
-0.99741573	-0.99740050	-0.99763002	-0.99877964	1.00000000	-0.99742207
0.99999999	0.99999994	0.99998965	0.99800214	-0.99742207	1.00000000