AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1998HY9 ∴ Orbital info ∴ Epoch epochXXX

(285256) 1998HY9 ▹

ORBITAL INFORMATION

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(ASCII data file 285256.eq0)

Keplerian elements at epoch
58124.6 MJD
	Value	1-σ variation	Units
a	2.52061	1.512e-08	au
e	0.158325	5.103e-08
i	14.682	7.799e-06	deg
Ω	45.544	2.155e-05	deg
ω	267.245	3.453e-05	deg
M	245.186	2.665e-05	deg

Other useful info
Absolute Magnitude (H)	16.9	mag
Slope parameter (G)	0.15	mag
Perihelion	2.1215	au
Aphelion	2.9197	au
Asc. node-Earth separation	1.486	au
Desc. node-Earth separation	1.43053	au
Earth MOID	1.16919	au
Orbital period	1461.69	days
Date of orbit computation	apr 23 20:50

Correlation matrix
1.00000000	-0.09599035	0.00610240	-0.00115852	0.03984251	-0.05657034
-0.09599035	1.00000000	0.00725571	-0.03312217	0.46446051	-0.56183350
0.00610240	0.00725571	1.00000000	-0.48963851	0.28517311	0.01519974
-0.00115852	-0.03312217	-0.48963851	1.00000000	-0.61210122	0.01468410
0.03984251	0.46446051	0.28517311	-0.61210122	1.00000000	-0.79095676
-0.05657034	-0.56183350	0.01519974	0.01468410	-0.79095676	1.00000000

Covariance matrix
2.28718448E-16	-7.40744055E-17	7.19756461E-16	-3.77624998E-16	2.08072637E-14	-2.27977905E-14
-7.40744055E-17	2.60363424E-15	2.88738050E-15	-3.64264301E-14	8.18382837E-13	-7.63925502E-13
7.19756461E-16	2.88738050E-15	6.08230443E-11	-8.23033542E-11	7.67998512E-11	3.15881167E-12
-3.77624998E-16	-3.64264301E-14	-8.23033542E-11	4.64532155E-10	-4.55563445E-10	8.43351295E-12
2.08072637E-14	8.18382837E-13	7.67998512E-11	-4.55563445E-10	1.19243708E-09	-7.27819808E-10
-2.27977905E-14	-7.63925502E-13	3.15881167E-12	8.43351295E-12	-7.27819808E-10	7.10079187E-10