NEODyS

NEODyS-2

Near Earth Objects - Dynamic Site

NEODyS ∴ Objects ∴ 2009HE21 ∴ Orbital info ∴ Epoch 54944 MJD

2009HE21 ▹

ORBITAL INFORMATION

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(ASCII data file 2009HE21.eq0)

Keplerian elements
(Epoch 54944.0 MJD)
	Value	1-σ variation	Units
a	2.39661	0.03634	au
e	0.855053	0.002787
i	6.468	0.03801	deg
Ω	34.536	0.007405	deg
ω	298.511	0.02891	deg
M	346.395	0.3415	deg

Other useful info
Absolute Magnitude (H)	24.5	mag
Slope parameter (G)	0.15	mag
Perihelion distance	0.3474	au
Aphelion distance	4.4458	au
Asc. node-Earth separation	-0.53758	au
Desc. node-Earth separation	0.08298	au
Earth MOID	0.00713	au
Orbital period	1355.17	days
Date of orbit computation	feb 26 11:49

Covariance matrix
1.32075234E-03	1.01295108E-04	1.38145322E-03	-2.69113688E-04	1.05008667E-03	1.24101201E-02
1.01295108E-04	7.76883736E-06	1.05951022E-04	-2.06398094E-05	8.05387392E-05	9.51794313E-04
1.38145322E-03	1.05951022E-04	1.44498498E-03	-2.81491787E-04	1.09847737E-03	1.29804852E-02
-2.69113688E-04	-2.06398094E-05	-2.81491787E-04	5.48379886E-05	-2.14002135E-04	-2.52866094E-03
1.05008667E-03	8.05387392E-05	1.09847737E-03	-2.14002135E-04	8.35534633E-04	9.86690077E-03
1.24101201E-02	9.51794313E-04	1.29804852E-02	-2.52866094E-03	9.86690077E-03	1.16608600E-01

Correlation matrix
1.00000000	0.99999945	0.99998578	-0.99996393	0.99961375	1.00000000
0.99999945	1.00000000	0.99998957	-0.99996986	0.99964221	0.99999954
0.99998578	0.99998957	1.00000000	-0.99998458	0.99971733	0.99998611
-0.99996393	-0.99996986	-0.99998458	1.00000000	-0.99975853	-0.99996443
0.99961375	0.99964221	0.99971733	-0.99975853	1.00000000	0.99961610
1.00000000	0.99999954	0.99998611	-0.99996443	0.99961610	1.00000000