Ceres

eccentricity

.07969229514816586 ± 4.7755E-12

semi-major axis

2.765552595034094 au ± 1.0134E-11

perihelion distance

2.545159361382861 au ± 1.9113E-11

inclination; angle with respect to x-y ecliptic plane

10.58802780183462 deg ± 4.6124E-9

longitude of the ascending node

80.24862682043221 deg ± 6.1807E-8

argument of perihelion

73.29421453021587 deg ± 6.6076E-8

mean anomaly

274.4193463761342 deg ± 6.1728E-9

time of perihelion passage

2461599.841466614066 TDB ± 2.8446E-8

sidereal orbital period

1679.853119758983 d ± 9.2333E-9

mean motion

.21430445064843 deg/d ± 1.1779E-12

aphelion distance

2.985945828685327 au ± 1.0942E-11

absolute magnitude

3.34

magnitude slope

0.12

diameter

939.4 km ± 0.2

extent

964.4 x 964.2 x 891.8 km ± 0.2 x 0.2 x 0.2

GM

62.6284 km^3/s^2 ± 0.0009

bulk density

2.162 g/cm^3 ± 0.008

rotation period

9.074170 h ± 0.000001

pole direction

291.421/66.758 ± 0.007/0.002

geometric albedo

0.090 ± 0.003

B-V

0.713 ± 0.014

U-B

0.426 ± 0.026

Tholen spectral type

G

SMASSII spectral type

C

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.