SpaceAtlas Space Object Data
NASA JPL SBDB · 2010 EB43

2010 EB43

2010 EB43 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.352 AU once every 1.57 yr.

Amor Observations: 120
Orbital Period · P
1.57 yr
v(q)
32 km/s
v(Q)
20.5 km/s
Diameter · ≈
0.12 km
TJ
4.75
Eccentricity · e
0.2185

Orbit and dynamics

The path is an ellipse reaching 1.056 AU from the Sun at perihelion and 1.647 AU at aphelion, a radial span of 0.591 AU.

Applying Kepler's third law to a = 1.352 AU gives an orbital period of 1.57 yr, or about 574 days.

An eccentricity of 0.218 makes the orbit moderately elongated.

A steep inclination of 25.44° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 32 km/s at perihelion and falls to 20.5 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 = 22.33 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.12 km.

Observation record and orbit quality

The current orbit solution is based on 120 observations and has a weighted RMS residual of 0.4231 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
1.352 AU
Eccentricity
0.2185
Perihelion
1.056 AU
Aphelion
1.647412 AU
Inclination
25.44°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
148.92°

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
2032-Mar-03 10:08 0.107921 AU
16144728 km
13.56 km/s
2043-Mar-04 00:24 0.114019 AU
17056997 km
13.51 km/s
2054-Mar-03 10:27 0.130281 AU
19489729 km
13.45 km/s
2065-Mar-02 17:12 0.163205 AU
24415078 km
13.43 km/s
2076-Mar-02 00:11 0.214920 AU
32151503 km
13.54 km/s
2078-Sep-28 21:21 0.498581 AU
74586623 km
13.11 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
22.33

Orbit Quality

RMS
0.42306
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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