AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1990QS2 ∴ Orbital info ∴ Epoch epochXXX

(7521) 1990QS2 ▹

ORBITAL INFORMATION

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(ASCII data file 7521.eq0)

Keplerian elements at epoch
57712.6 MJD
	Value	1-σ variation	Units
a	2.90033	9.275e-09	au
e	0.009051	2.971e-08
i	2.649	2.827e-06	deg
Ω	143.267	6.534e-05	deg
ω	15.708	0.0001781	deg
M	304.154	0.0001655	deg

Other useful info
Absolute Magnitude (H)	13.0	mag
Slope parameter (G)	0.15	mag
Perihelion	2.8741	au
Aphelion	2.9266	au
Asc. node-Earth separation	1.8877	au
Desc. node-Earth separation	1.91355	au
Earth MOID	1.87966	au
Orbital period	1804.14	days
Date of orbit computation	apr 23 19:47

Correlation matrix
1.00000000	-0.06793904	0.00321077	-0.00341641	-0.17555693	0.18916584
-0.06793904	1.00000000	0.00384955	-0.00247598	0.19852693	-0.20726823
0.00321077	0.00384955	1.00000000	0.17990227	-0.05989282	-0.00640025
-0.00341641	-0.00247598	0.17990227	1.00000000	-0.36749411	0.00088518
-0.17555693	0.19852693	-0.05989282	-0.36749411	1.00000000	-0.93026177
0.18916584	-0.20726823	-0.00640025	0.00088518	-0.93026177	1.00000000

Covariance matrix
8.60317911E-17	-1.87203493E-17	8.41802010E-17	-2.07056160E-15	-2.89941395E-13	2.90425616E-13
-1.87203493E-17	8.82531237E-16	3.23255369E-16	-4.80620131E-15	1.05014007E-12	-1.01920254E-12
8.41802010E-17	3.23255369E-16	7.98990794E-12	3.32274105E-11	-3.01445235E-11	-2.99454192E-12
-2.07056160E-15	-4.80620131E-15	3.32274105E-11	4.26950907E-09	-4.27564973E-09	9.57377417E-12
-2.89941395E-13	1.05014007E-12	-3.01445235E-11	-4.27564973E-09	3.17048381E-08	-2.74176776E-08
2.90425616E-13	-1.01920254E-12	-2.99454192E-12	9.57377417E-12	-2.74176776E-08	2.73984152E-08