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Solar
Asteroid Near-Earth

143624

143624 (2003 HM16)

Where is it now

Distance from Sun
3.021 AU
True anomaly
168.61°
As of
29 August 2026

Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.

Orbital elements

Semi-major axis
1.967 AU
Eccentricity
0.5774
Inclination
35.54°
Orbital period
2.76 years
Perihelion
0.831 AU
Aphelion
3.102 AU
Longitude of ascending node
195.83°
Argument of periapsis
47.2°
Epoch · J2000
2461000.5

Physical properties

Mean radius
1.07 km
Rotation period
32.1 hours

Visual & observation

Geometric albedo
0.169
Absolute magnitude (H)
15.91
Spectral type
APO

Discovery & classification

Near-Earth Object

Sources