Annefrank

eccentricity

.06320477835864081 ± 5.1533E-10

semi-major axis

2.212362295339368 au ± 4.0709E-10

perihelion distance

2.072530426813429 au ± 1.2185E-9

inclination; angle with respect to x-y ecliptic plane

4.247441129212657 deg ± 4.3564E-8

longitude of the ascending node

120.5509750358684 deg ± 6.2079E-7

argument of perihelion

9.553711837707379 deg ± 7.6134E-7

mean anomaly

260.8814202449275 deg ± 8.007E-7

time of perihelion passage

2461531.429413087528 TDB ± 2.7012E-6

sidereal orbital period

1201.940029870265 d ± 3.3175E-7

mean motion

.2995157753742986 deg/d ± 8.2669E-11

aphelion distance

2.352194163865307 au ± 4.3282E-10

absolute magnitude

13.86

diameter

4.8 km

extent

6.6 x 5.0 x 3.4 km

rotation period

15.12 h

geometric albedo

0.311 ± 0.056

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.