SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 AG165

2016 AG165

2016 AG165 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.64 AU once every 2.10 yr.

Amor Observations: 107
Orbital Period · P
2.10 yr
v(q)
33.6 km/s
v(Q)
16.1 km/s
Diameter · ≈
0.23 km
TJ
4.18
Eccentricity · e
0.3515

Orbit and dynamics

The path is an ellipse reaching 1.064 AU from the Sun at perihelion and 2.216 AU at aphelion, a radial span of 1.152 AU.

Applying Kepler's third law to a = 1.64 AU gives an orbital period of 2.10 yr, or about 767 days.

An eccentricity of 0.351 makes the orbit moderately elongated.

The orbital plane is tilted 16.53° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.6 km/s at perihelion and falls to 16.1 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 20.92 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.23 km.

Observation record and orbit quality

The current orbit solution is based on 107 observations and has a weighted RMS residual of 0.4273 arcseconds.

Condition code U = 0 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

About these computed values

Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Orbital Parameters

Semi-Major Axis
1.64 AU
Eccentricity
0.3515
Perihelion
1.064 AU
Aphelion
2.21646 AU
Inclination
16.53°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
17.4°

Orbit diagram

The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.

3D orbit (interactive)

Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.

Close approaches

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2036-Sep-23 00:29 0.331884 AU
49649086 km
11.24 km/s
2037-Jan-04 05:41 0.292757 AU
43795753 km
8.58 km/s
2038-Aug-24 21:06 0.482829 AU
72230260 km
8.82 km/s
2057-Sep-23 19:12 0.317115 AU
47439698 km
10.52 km/s
2058-Jan-02 19:51 0.275685 AU
41241823 km
8.69 km/s
2078-Sep-24 07:17 0.309295 AU
46269893 km
10.06 km/s
2079-Jan-02 07:25 0.265432 AU
39708110 km
8.80 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.92

Orbit Quality

RMS
0.42729
Condition
0
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Keep exploring

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