NEODyS

NEODyS-2

Near Earth Objects - Dynamic Site

NEODyS ∴ Objects ∴ 2009HE21 ∴ Orbital info ∴ Epoch 60400 MJD

2009HE21 ▹

ORBITAL INFORMATION

◲

(ASCII data file 2009HE21.eq1)

Keplerian elements
(Epoch 60400.0 MJD)
	Value	1-σ variation	Units
a	2.38939	0.03005	au
e	0.858402	0.003157
i	6.626	0.1132	deg
Ω	32.261	0.7886	deg
ω	300.867	0.8249	deg
M	358.234	30.66	deg

Other useful info
Absolute Magnitude (H)	24.5	mag
Slope parameter (G)	0.15	mag
Perihelion distance	0.3383	au
Aphelion distance	4.4405	au
Asc. node-Earth separation	-0.55705	au
Desc. node-Earth separation	0.11882	au
Earth MOID	0.01	au
Orbital period	1349.05	days
Date of orbit computation	feb 26 11:49

Covariance matrix
9.03245841E-04	9.48948708E-05	3.40159935E-03	-2.37010655E-02	2.47926463E-02	-9.21413496E-01
9.48948708E-05	9.96964833E-06	3.57371940E-04	-2.49003008E-03	2.60471348E-03	-9.68035613E-02
3.40159935E-03	3.57371940E-04	1.28103724E-02	-8.92575580E-02	9.33685397E-02	-3.47001821E+00
-2.37010655E-02	-2.49003008E-03	-8.92575580E-02	6.21913202E-01	-6.50556088E-01	2.41777826E+01
2.47926463E-02	2.60471348E-03	9.33685397E-02	-6.50556088E-01	6.80518725E-01	-2.52913191E+01
-9.21413496E-01	-9.68035613E-02	-3.47001821E+00	2.41777826E+01	-2.52913191E+01	9.39946571E+02

Correlation matrix
1.00000000	0.99999962	0.99999838	-0.99999999	0.99999968	-1.00000000
0.99999962	1.00000000	0.99999920	-0.99999951	1.00000000	-0.99999961
0.99999838	0.99999920	1.00000000	-0.99999824	0.99999919	-0.99999837
-0.99999999	-0.99999951	-0.99999824	1.00000000	-0.99999958	0.99999999
0.99999968	1.00000000	0.99999919	-0.99999958	1.00000000	-0.99999967
-1.00000000	-0.99999961	-0.99999837	0.99999999	-0.99999967	1.00000000