Near-Earth object / ID: 2013553
13553 Masaakikoyama is a near-Earth object of the AMO orbit class — Near-Earth asteroid orbits similar to that of 1221 Amor. Radar and photometric estimates put it between 1.3km - 2.9km across. It has been followed since 1979-06-24 across 2176 recorded observations. Its next approach to Earth is 2053-Nov-29 17:45, passing at 32.656 LD. It is not classified as a potentially hazardous asteroid.
Data source: NASA NeoWs API
Visualization: mesh render
Hazard analysis
PHA status
Not hazardous
Min. orbit intersection
0.191 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
8.58 km/s
Miss distance (lunar)
32.656 LD
Miss distance (km)
12,558,607 km
Physical characteristics
Perihelion
1.176 AU
Aphelion
3.206 AU
Orbital period
1184.9 days
Inclination
5.874°
Eccentricity
0.463
Semi-major axis
2.191 AU
Est. diameter (min–max)
1.3km - 2.9km
Log scale · 1m – 100km
Absolute magnitude
16.5 H
Orbit class
AMO
Observations used
2,176