NEODyS

NEODyS-2

Near Earth Objects - Dynamic Site

NEODyS ∴ Objects ∴ 1998SD15 ∴ Orbital info ∴ Epoch 56816 MJD

(162117) 1998SD15 ▹

ORBITAL INFORMATION

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(ASCII data file 162117.eq0)

Keplerian elements
(Epoch 56816.1 MJD)
	Value	1-σ variation	Units
a	0.932476	1.165e-09	au
e	0.344836	1.652e-07
i	26.795	1.455e-05	deg
Ω	183.952	3.784e-06	deg
ω	35.83	1.139e-05	deg
M	265.822	2.772e-05	deg

Non-gravitational parameters
	Value	1-σ variation	Units
A₁	N/A	N/A	au/day²
A₂	-1.703e-14	3.791e-15	au/day²

Other useful info
Absolute Magnitude (H)	19.1	mag
Slope parameter (G)	0.15	mag
Perihelion distance	0.6109	au
Aphelion distance	1.254	au
Asc. node-Earth separation	-0.35505	au
Desc. node-Earth separation	0.13898	au
Earth MOID	0.11146	au
Orbital period	328.893	days
Date of orbit computation	feb 26 10:21

Covariance matrix
1.35794081E-18	3.25175675E-19	-1.16325036E-17	-1.81952570E-16	1.15636751E-15	-4.32398826E-16	4.06080662E-14
3.25175675E-19	2.72982003E-14	1.10691748E-12	-2.67127461E-13	8.01185887E-13	-4.05583032E-12	3.18176787E-13
-1.16325036E-17	1.10691748E-12	2.11592412E-10	-2.92981579E-11	-1.65766745E-11	-8.70724830E-11	4.88850787E-11
-1.81952570E-16	-2.67127461E-13	-2.92981579E-11	1.43208122E-11	-1.32703442E-11	3.37361129E-11	1.06022036E-12
1.15636751E-15	8.01185887E-13	-1.65766745E-11	-1.32703442E-11	1.29728525E-10	-2.43640983E-10	3.76791905E-11
-4.32398826E-16	-4.05583032E-12	-8.70724830E-11	3.37361129E-11	-2.43640983E-10	7.68153894E-10	1.38695587E-10
4.06080662E-14	3.18176787E-13	4.88850787E-11	1.06022036E-12	3.76791905E-11	1.38695587E-10	1.43751550E-09

Correlation matrix
1.00000000	0.00168893	-0.00068625	-0.04126045	0.08712398	-0.01338813	0.91910604
0.00168893	1.00000000	0.46057270	-0.42723587	0.42574401	-0.88570409	0.05079199
-0.00068625	0.46057270	1.00000000	-0.53223870	-0.10005289	-0.21597663	0.08863801
-0.04126045	-0.42723587	-0.53223870	1.00000000	-0.30787939	0.32165262	0.00738935
0.08712398	0.42574401	-0.10005289	-0.30787939	1.00000000	-0.77180659	0.08725243
-0.01338813	-0.88570409	-0.21597663	0.32165262	-0.77180659	1.00000000	0.13198733
0.91910604	0.05079199	0.08863801	0.00738935	0.08725243	0.13198733	1.00000000