AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1991ST ∴ Orbital info ∴ Epoch epochXXX

(13538) 1991ST ▹

ORBITAL INFORMATION

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(ASCII data file 13538.eq1)

Keplerian elements at epoch
60400.0 MJD
	Value	1-σ variation	Units
a	2.2008	5.112e-09	au
e	0.219611	2.898e-08
i	6.848	2.999e-06	deg
Ω	79.492	2.417e-05	deg
ω	229.352	2.503e-05	deg
M	12.33	7.653e-06	deg

Other useful info
Absolute Magnitude (H)	13.7	mag
Slope parameter (G)	0.15	mag
Perihelion	1.7175	au
Aphelion	2.6841	au
Asc. node-Earth separation	1.46015	au
Desc. node-Earth separation	0.81732	au
Earth MOID	0.71181	au
Orbital period	1192.53	days
Date of orbit computation	apr 23 19:48

Correlation matrix
1.00000000	-0.42176545	0.01100278	-0.00389276	0.02672745	-0.50691950
-0.42176545	1.00000000	-0.02359094	0.00770780	-0.01877444	0.24380156
0.01100278	-0.02359094	1.00000000	0.01537875	-0.01128348	-0.01298147
-0.00389276	0.00770780	0.01537875	1.00000000	-0.95755916	0.00289306
0.02672745	-0.01877444	-0.01128348	-0.95755916	1.00000000	-0.25004943
-0.50691950	0.24380156	-0.01298147	0.00289306	-0.25004943	1.00000000

Covariance matrix
2.61356498E-17	-6.24839853E-17	1.68675141E-16	-4.80986732E-16	3.42027552E-15	-1.98327164E-14
-6.24839853E-17	8.39773434E-16	-2.05002144E-15	5.39847246E-15	-1.36186770E-14	5.40684728E-14
1.68675141E-16	-2.05002144E-15	8.99216507E-12	1.11458273E-12	-8.46958592E-13	-2.97908218E-13
-4.80986732E-16	5.39847246E-15	1.11458273E-12	5.84141800E-10	-5.79310802E-10	5.35109843E-13
3.42027552E-15	-1.36186770E-14	-8.46958592E-13	-5.79310802E-10	6.26575972E-10	-4.79004177E-11
-1.98327164E-14	5.40684728E-14	-2.97908218E-13	5.35109843E-13	-4.79004177E-11	5.85670180E-11