Ryugu

eccentricity

.1910730046480051 ± 8.1156E-9

semi-major axis

1.190918932702464 au ± 2.2717E-9

perihelion distance

.9633664739388087 au ± 1.0094E-8

inclination; angle with respect to x-y ecliptic plane

5.866442486408568 deg ± 4.199E-7

longitude of the ascending node

251.2897123995624 deg ± 2.6083E-6

argument of perihelion

211.608993811871 deg ± 2.9589E-6

mean anomaly

62.34067409463987 deg ± 2.6185E-6

time of perihelion passage

2461118.296422313344 TDB ± 3.2282E-6

sidereal orbital period

474.7027265420688 d ± 1.3583E-6

mean motion

.7583693538530714 deg/d ± 2.17E-9

aphelion distance

1.418471391466119 au ± 2.7058E-9

absolute magnitude

19.55

diameter

0.896 km ± 0.004

extent

1.004x0.876 km

GM

3.00e-8 km^3/s^2 ± 0.04e-8

bulk density

1.19 g/cm^3 ± 0.02

rotation period

7.63262 h ± 0.00002

pole direction

96.3956/-66.3937 ± 0.0082/0.006

geometric albedo

0.045 ± 0.002

SMASSII spectral type

Cb

Published JPL orbital elements describe their stated epoch; they are not current positions. Small-body diameters can be effective/model-dependent sizes, not spherical shapes. Missing measurements remain unavailable. Pluto’s diameter uses the New Horizons reference rather than an empty SBDB field. Orbital epoch: JD 2461200.5 TDB.