SpaceAtlas Space Object Data
NASA JPL SBDB · 2000 AA6

2000 AA6

2000 AA6 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.286 AU it takes 1.46 yr to circle the Sun.

Apollo Observations: 151
Orbital Period · P
1.46 yr
v(q)
46.7 km/s
v(Q)
14.8 km/s
Diameter · ≈
0.12 km
TJ
4.9
Eccentricity · e
0.5192

Orbit and dynamics

The path is an ellipse reaching 0.618 AU from the Sun at perihelion and 1.954 AU at aphelion, a radial span of 1.336 AU.

Applying Kepler's third law to a = 1.286 AU gives an orbital period of 1.46 yr, or about 533 days.

The high eccentricity (0.519) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 2.03° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 46.7 km/s at perihelion and falls to 14.8 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Size and surface

The measured diameter is 0.32 km, a value from direct size determination rather than from brightness alone.

Its geometric albedo of 0.026 indicates a very dark, carbonaceous-type surface.

Observation record and orbit quality

The current orbit solution is based on 151 observations and has a weighted RMS residual of 0.4048 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
1.286 AU
Eccentricity
0.5192
Perihelion
0.618 AU
Aphelion
1.953691 AU
Inclination
2.03°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
353.89°

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
2029-Jul-06 09:48 0.233094 AU
34870298 km
9.78 km/s
2032-Apr-19 06:34 0.386726 AU
57853418 km
17.04 km/s
2035-Feb-01 02:29 0.218666 AU
32711921 km
9.77 km/s
2037-Dec-30 18:00 0.285077 AU
42646985 km
24.75 km/s
2045-Aug-02 05:50 0.086080 AU
12877411 km
18.50 km/s
2048-May-27 10:58 0.344910 AU
51597730 km
14.22 km/s
2048-Aug-05 10:47 0.440358 AU
65876630 km
8.00 km/s
2050-Dec-27 14:55 0.486197 AU
72734016 km
9.52 km/s
2051-Mar-24 03:58 0.359967 AU
53850242 km
15.51 km/s
2054-Jan-11 07:29 0.038218 AU
5717286 km
17.17 km/s
2061-Aug-10 01:13 0.241955 AU
36195965 km
23.15 km/s
2064-Jun-20 10:35 0.281331 AU
42086560 km
10.96 km/s
2067-Apr-08 02:24 0.380870 AU
56977276 km
16.72 km/s
2070-Jan-16 08:54 0.060235 AU
9011068 km
14.23 km/s
2072-Dec-21 06:56 0.487270 AU
72894502 km
31.02 km/s
2077-Aug-14 15:14 0.337134 AU
50434540 km
26.02 km/s

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

Physical Parameters

Diameter
0.316 km
Albedo
0.026
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
22.44

Orbit Quality

RMS
0.40481
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.

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