NEODyS

NEODyS-2

Near Earth Objects - Dynamic Site

NEODyS ∴ Objects ∴ 1998HT31 ∴ Orbital info ∴ Epoch 60400 MJD

1998HT31 ▹

ORBITAL INFORMATION

◲

(ASCII data file 1998HT31.eq1)

Keplerian elements
(Epoch 60400.0 MJD)
	Value	1-σ variation	Units
a	2.50461	0.01192	au
e	0.691933	0.001966
i	6.772	0.008817	deg
Ω	213.492	0.0767	deg
ω	80.721	0.06994	deg
M	179.625	13.44	deg

Other useful info
Absolute Magnitude (H)	20.8	mag
Slope parameter (G)	0.15	mag
Perihelion distance	0.7716	au
Aphelion distance	4.2376	au
Asc. node-Earth separation	0.16848	au
Desc. node-Earth separation	0.47672	au
Earth MOID	0.03158	au
Orbital period	1447.8	days
Date of orbit computation	feb 26 10:21

Covariance matrix
1.42103921E-04	2.34326516E-05	1.05105086E-04	-9.14275983E-04	8.33778715E-04	-1.60162742E-01
2.34326516E-05	3.86399733E-06	1.73316145E-05	-1.50762282E-04	1.37488464E-04	-2.64105150E-02
1.05105086E-04	1.73316145E-05	7.77412534E-05	-6.76228434E-04	6.16688649E-04	-1.18462029E-01
-9.14275983E-04	-1.50762282E-04	-6.76228434E-04	5.88232252E-03	-5.36441669E-03	1.03046381E+00
8.33778715E-04	1.37488464E-04	6.16688649E-04	-5.36441669E-03	4.89211753E-03	-9.39736809E-01
-1.60162742E-01	-2.64105150E-02	-1.18462029E-01	1.03046381E+00	-9.39736809E-01	1.80516510E+02

Correlation matrix
1.00000000	0.99999999	0.99998833	-0.99999969	0.99999846	-1.00000000
0.99999999	1.00000000	0.99998812	-0.99999972	0.99999865	-0.99999999
0.99998833	0.99998812	1.00000000	-0.99998444	0.99998099	-0.99998833
-0.99999969	-0.99999972	-0.99998444	1.00000000	-0.99999919	0.99999969
0.99999846	0.99999865	0.99998099	-0.99999919	1.00000000	-0.99999846
-1.00000000	-0.99999999	-0.99998833	0.99999969	-0.99999846	1.00000000