AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 2001ST21 ∴ Orbital info ∴ Epoch epochXXX

(109904) 2001ST21 ▹

ORBITAL INFORMATION

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(ASCII data file 109904.eq1)

Keplerian elements at epoch
60400.0 MJD
	Value	1-σ variation	Units
a	2.54022	7.398e-09	au
e	0.146468	2.543e-08
i	4.753	2.752e-06	deg
Ω	84.666	9.725e-05	deg
ω	1.165	0.0001027	deg
M	147.174	3.652e-05	deg

Other useful info
Absolute Magnitude (H)	15.5	mag
Slope parameter (G)	0.15	mag
Perihelion	2.1682	au
Aphelion	2.9123	au
Asc. node-Earth separation	1.18483	au
Desc. node-Earth separation	1.89628	au
Earth MOID	1.18482	au
Orbital period	1478.79	days
Date of orbit computation	apr 23 20:11

Correlation matrix
1.00000000	0.14755483	0.01476302	0.00911935	0.07569680	-0.32162875
0.14755483	1.00000000	0.01244349	0.00215043	0.11425690	-0.30393747
0.01476302	0.01244349	1.00000000	0.09631512	-0.07959516	-0.03017468
0.00911935	0.00215043	0.09631512	1.00000000	-0.92970189	-0.03931830
0.07569680	0.11425690	-0.07959516	-0.92970189	1.00000000	-0.32881687
-0.32162875	-0.30393747	-0.03017468	-0.03931830	-0.32881687	1.00000000

Covariance matrix
5.47291148E-17	2.77603885E-17	3.00538816E-16	6.56074294E-15	5.74898037E-14	-8.68898929E-14
2.77603885E-17	6.46734167E-16	8.70806279E-16	5.31823866E-15	2.98297383E-13	-2.82261942E-13
3.00538816E-16	8.70806279E-16	7.57238340E-12	2.57745287E-11	-2.24857321E-11	-3.03224388E-12
6.56074294E-15	5.31823866E-15	2.57745287E-11	9.45714252E-09	-9.28170535E-09	-1.39630376E-10
5.74898037E-14	2.98297383E-13	-2.24857321E-11	-9.28170535E-09	1.05392133E-08	-1.23271696E-09
-8.68898929E-14	-2.82261942E-13	-3.03224388E-12	-1.39630376E-10	-1.23271696E-09	1.33355326E-09