Near-Earth object / ID: 2004947
4947 Ninkasi 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 646m - 1.4km across. It has been followed since 1978-02-17 across 996 recorded observations. Its next approach to Earth is 2031-Apr-20 12:22, passing at 11.349 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
0.149 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
7.36 km/s
Miss distance (lunar)
11.349 LD
Miss distance (km)
4,364,344 km
Physical characteristics
Perihelion
1.139 AU
Aphelion
1.601 AU
Orbital period
585.7 days
Inclination
15.652°
Eccentricity
0.168
Semi-major axis
1.370 AU
Est. diameter (min–max)
646m - 1.4km
Log scale · 1m – 100km
Absolute magnitude
18.1 H
Orbit class
AMO
Observations used
996