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.eq0)

Keplerian elements at epoch
57501.4 MJD
	Value	1-σ variation	Units
a	2.20138	5.134e-09	au
e	0.220179	2.901e-08
i	6.848	2.999e-06	deg
Ω	79.564	2.417e-05	deg
ω	229.183	2.502e-05	deg
M	217.537	6.614e-06	deg

Other useful info
Absolute Magnitude (H)	13.7	mag
Slope parameter (G)	0.15	mag
Perihelion	1.7167	au
Aphelion	2.6861	au
Asc. node-Earth separation	1.46354	au
Desc. node-Earth separation	0.81608	au
Earth MOID	0.71151	au
Orbital period	1193	days
Date of orbit computation	apr 23 19:48

Correlation matrix
1.00000000	-0.42878473	0.00799775	-0.00304121	0.03154793	-0.14125119
-0.42878473	1.00000000	-0.02414761	0.00749109	-0.01912092	0.08744878
0.00799775	-0.02414761	1.00000000	0.01613833	-0.01194020	-0.01080348
-0.00304121	0.00749109	0.01613833	1.00000000	-0.95787840	0.00145144
0.03154793	-0.01912092	-0.01194020	-0.95787840	1.00000000	-0.27431061
-0.14125119	0.08744878	-0.01080348	0.00145144	-0.27431061	1.00000000

Covariance matrix
2.63610382E-17	-6.38592352E-17	1.23134896E-16	-3.77375186E-16	4.05294190E-15	-4.79680974E-15
-6.38592352E-17	8.41407321E-16	-2.10043669E-15	5.25162669E-15	-1.38781064E-14	1.67778397E-14
1.23134896E-16	-2.10043669E-15	8.99217209E-12	1.16959763E-12	-8.95905447E-13	-2.14276736E-13
-3.77375186E-16	5.25162669E-15	1.16959763E-12	5.84105650E-10	-5.79261151E-10	2.32019472E-13
4.05294190E-15	-1.38781064E-14	-8.95905447E-13	-5.79261151E-10	6.26089811E-10	-4.53983483E-11
-4.79680974E-15	1.67778397E-14	-2.14276736E-13	2.32019472E-13	-4.53983483E-11	4.37480055E-11