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Solar
Asteroid Near-Earth Potentially hazardous

Moshup

66391 Moshup (1999 KW4)

Where is it now

Distance from Sun
1.076 AU
True anomaly
175.01°
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
0.642 AU
Eccentricity
0.6884
Inclination
38.88°
Orbital period
188.1 days
Perihelion
0.2 AU
Aphelion
1.085 AU
Longitude of ascending node
244.9°
Argument of periapsis
192.65°
Epoch · J2000
2461200.5

Physical properties

Mean radius
0.66 km
Rotation period
2.76 hours

Visual & observation

Absolute magnitude (H)
16.64
Spectral type
ATE

Discovery & classification

Near-Earth Object Named Potentially Hazardous Asteroid

Sources