SpaceAtlas Space Object Data
NASA JPL SBDB · 2007 EH

2007 EH

2007 EH belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.167 AU it takes 3.19 yr to circle the Sun.

Apollo Observations: 68
Orbital Period · P
3.19 yr
v(q)
44.5 km/s
v(Q)
9.2 km/s
Diameter · ≈
0.01 km
TJ
3.37
Eccentricity · e
0.6574

Orbit and dynamics

The path is an ellipse reaching 0.742 AU from the Sun at perihelion and 3.592 AU at aphelion, a radial span of 2.85 AU.

Applying Kepler's third law to a = 2.167 AU gives an orbital period of 3.19 yr, or about 1,165 days.

The high eccentricity (0.657) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 1.35° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 44.5 km/s at perihelion and falls to 9.2 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

No direct size measurement is available; from an absolute magnitude of H = 27.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 68 observations and has a weighted RMS residual of 0.3695 arcseconds.

Condition code U = 4 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
2.167 AU
Eccentricity
0.6574
Perihelion
0.742 AU
Aphelion
3.591586 AU
Inclination
1.35°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
3.2°

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
2042-Apr-11 17:57 0.200040 AU
29925513 km
13.21 km/s
2045-Aug-28 11:25 0.447958 AU
67013632 km
30.48 km/s
2058-Feb-28 21:11 0.160539 AU
24016262 km
22.21 km/s
2061-Aug-09 07:59 0.069413 AU
10383967 km
19.52 km/s
2077-Jun-10 00:01 0.257568 AU
38531587 km
14.56 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
27.6

Orbit Quality

RMS
0.36955
Condition
4
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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