AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1987AN ∴ Orbital info ∴ Epoch epochXXX

(161997) 1987AN ▹

ORBITAL INFORMATION

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(ASCII data file 161997.eq0)

Keplerian elements at epoch
57474.3 MJD
	Value	1-σ variation	Units
a	2.34835	1.225e-08	au
e	0.185944	4.934e-08
i	3.008	4.861e-06	deg
Ω	136.173	8.719e-05	deg
ω	221.235	8.812e-05	deg
M	137.831	1.202e-05	deg

Other useful info
Absolute Magnitude (H)	16.6	mag
Slope parameter (G)	0.15	mag
Perihelion	1.9117	au
Aphelion	2.785	au
Asc. node-Earth separation	1.65015	au
Desc. node-Earth separation	0.97601	au
Earth MOID	0.90924	au
Orbital period	1314.45	days
Date of orbit computation	apr 23 20:23

Correlation matrix
1.00000000	0.31539242	0.00303165	-0.00157520	0.03277151	-0.29226483
0.31539242	1.00000000	0.00034717	0.00116380	-0.01021369	-0.02955005
0.00303165	0.00034717	1.00000000	0.16288826	-0.16235248	0.01399198
-0.00157520	0.00116380	0.16288826	1.00000000	-0.98913029	0.00658994
0.03277151	-0.01021369	-0.16235248	-0.98913029	1.00000000	-0.14747337
-0.29226483	-0.02955005	0.01399198	0.00658994	-0.14747337	1.00000000

Covariance matrix
1.49959363E-16	1.90558298E-16	1.80462978E-16	-1.68189686E-15	3.53656541E-14	-4.30162193E-14
1.90558298E-16	2.43433105E-15	8.32644948E-17	5.00663151E-15	-4.44089968E-14	-1.75233436E-14
1.80462978E-16	8.32644948E-17	2.36290259E-11	6.90381955E-11	-6.95472917E-11	8.17468174E-13
-1.68189686E-15	5.00663151E-15	6.90381955E-11	7.60244812E-09	-7.60026299E-09	6.90600761E-12
3.53656541E-14	-4.44089968E-14	-6.95472917E-11	-7.60026299E-09	7.76598896E-09	-1.56199947E-10
-4.30162193E-14	-1.75233436E-14	8.17468174E-13	6.90600761E-12	-1.56199947E-10	1.44456724E-10