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Solar
Asteroid Near-Earth

101873

101873 (1999 NC5)

Where is it now

Distance from Sun
1.8 AU
True anomaly
96.87°
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
2.029 AU
Eccentricity
0.3931
Inclination
45.79°
Orbital period
2.89 years
Perihelion
1.232 AU
Aphelion
2.827 AU
Longitude of ascending node
128.77°
Argument of periapsis
295.27°
Epoch · J2000
2461000.5

Visual & observation

Absolute magnitude (H)
16.39
Spectral type
AMO

Discovery & classification

Near-Earth Object

Sources