Trojan asteroid · 11351

Leucus

Measurements

Effective diameter
34.155 km
Semimajor axis
5.312 AU
Orbital period
4,472.316 Earth days
Orbit, physical values and uncertainties
eccentricity
.06495789797701287 ± 2.9812E-9
semi-major axis
5.312382832170665 au ± 2.6282E-8
perihelion distance
4.967301610143688 au ± 3.8651E-8
inclination; angle with respect to x-y ecliptic plane
11.54341670108032 deg ± 3.1594E-8
longitude of the ascending node
251.0799335752079 deg ± 2.0917E-7
argument of perihelion
162.4048390063255 deg ± 3.4945E-6
mean anomaly
139.1721755085774 deg ± 1.752E-6
time of perihelion passage
2459471.550179050634 TDB ± 3.3289E-5
sidereal orbital period
4472.31591564372 d ± 3.3189E-5
mean motion
.08049520802874313 deg/d ± 5.9736E-10
aphelion distance
5.657464054197642 au ± 2.799E-8
absolute magnitude
10.87
diameter
34.155 km ± 0.646
rotation period
445.924 h
geometric albedo
0.079 ± 0.013

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.

Object reference ↗

Missions & milestones

1 launches · 10 connected events

These are target-related flights and every connected programme record in the production catalogue. A connected event may concern another stage or target of the same journey. Launch outcome does not establish arrival or current operation.

CONNECTED EVENT · UPCOMING

Lucy Trojan Asteroids (617) Patroclus & Menoetius Flyby

March 3, 2033 · time to be confirmed

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CONNECTED EVENT · UPCOMING

Lucy Earth Flyby

December 25, 2030 · time to be confirmed

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CONNECTED EVENT · UPCOMING

Lucy Trojan Asteroid (21900) Orus Flyby

November 11, 2028 · time to be confirmed

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CONNECTED EVENT · UPCOMING

Lucy Trojan Asteroid (11351) Leucus Flyby

April 18, 2028 · time to be confirmed

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CONNECTED EVENT · UPCOMING

Lucy Trojan Asteroid (15094) Polymele Flyby

September 15, 2027 · time to be confirmed

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CONNECTED EVENT · UPCOMING

Lucy Trojan Asteroid (3548) Eurybates & Queta Flyby

August 12, 2027 · time to be confirmed

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CONNECTED EVENT

Lucy Main Belt Asteroid (52246) Donaldjohansen Flyby

April 20, 2025 · UTC

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CONNECTED EVENT

Lucy Earth Flyby

December 13, 2024 · UTC

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CONNECTED EVENT

Lucy Earth Flyby

October 16, 2022 · UTC

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TARGET-RELATED FLIGHT

Lucy

October 16, 2021 · UTC

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CONNECTED EVENT

NASA Lucy Pre-Launch News Conference

October 13, 2021 · UTC

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Complete source cohort: 9,386 records.

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