AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1998XU21 ∴ Orbital info ∴ Epoch epochXXX

(229951) 1998XU21 ▹

ORBITAL INFORMATION

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(ASCII data file 229951.eq0)

Keplerian elements at epoch
58102.1 MJD
	Value	1-σ variation	Units
a	3.08133	2.296e-08	au
e	0.105554	4.737e-08
i	6.419	5.094e-06	deg
Ω	110.424	5.155e-05	deg
ω	41.064	6.061e-05	deg
M	148.041	2.977e-05	deg

Other useful info
Absolute Magnitude (H)	15.8	mag
Slope parameter (G)	0.15	mag
Perihelion	2.7561	au
Aphelion	3.4066	au
Asc. node-Earth separation	1.8388	au
Desc. node-Earth separation	2.29263	au
Earth MOID	1.77077	au
Orbital period	1975.63	days
Date of orbit computation	apr 23 20:38

Correlation matrix
1.00000000	0.01423964	0.00361465	0.00327666	0.00072633	-0.01095202
0.01423964	1.00000000	-0.01042850	0.00728163	0.07544378	-0.15204160
0.00361465	-0.01042850	1.00000000	-0.04406269	0.03881965	-0.00047581
0.00327666	0.00728163	-0.04406269	1.00000000	-0.84175000	-0.00656254
0.00072633	0.07544378	0.03881965	-0.84175000	1.00000000	-0.53028018
-0.01095202	-0.15204160	-0.00047581	-0.00656254	-0.53028018	1.00000000

Covariance matrix
5.27202846E-16	1.54867706E-17	4.22739816E-16	3.87832800E-15	1.01072147E-15	-7.48589845E-15
1.54867706E-17	2.24360363E-15	-2.51601417E-15	1.77797515E-14	2.16573430E-13	-2.14385904E-13
4.22739816E-16	-2.51601417E-15	2.59439787E-11	-1.15694690E-11	1.19833596E-11	-7.21460226E-14
3.87832800E-15	1.77797515E-14	-1.15694690E-11	2.65734755E-09	-2.62975905E-09	-1.00706322E-11
1.01072147E-15	2.16573430E-13	1.19833596E-11	-2.62975905E-09	3.67296937E-09	-9.56697805E-10
-7.48589845E-15	-2.14385904E-13	-7.21460226E-14	-1.00706322E-11	-9.56697805E-10	8.86179024E-10