SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 XJ62

2017 XJ62

2017 XJ62 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.69 AU it takes 4.41 yr to circle the Sun.

Apollo Observations: 116
Orbital Period · P
4.41 yr
v(q)
39.1 km/s
v(Q)
8.4 km/s
Diameter · ≈
0.21 km
TJ
2.93
Eccentricity · e
0.6455

Orbit and dynamics

The path is an ellipse reaching 0.953 AU from the Sun at perihelion and 4.426 AU at aphelion, a radial span of 3.473 AU.

Applying Kepler's third law to a = 2.69 AU gives an orbital period of 4.41 yr, or about 1,611 days.

The high eccentricity (0.645) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 25.38° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 39.1 km/s at perihelion and falls to 8.4 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 = 21.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.21 km.

Observation record and orbit quality

The current orbit solution is based on 116 observations and has a weighted RMS residual of 0.5144 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
2.69 AU
Eccentricity
0.6455
Perihelion
0.953 AU
Aphelion
4.426395 AU
Inclination
25.38°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
319.83°

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
2048-Dec-13 01:26 0.330594 AU
49456100 km
24.32 km/s
2071-Apr-24 12:12 0.457215 AU
68398367 km
20.82 km/s
2079-Dec-08 05:01 0.405593 AU
60675785 km
27.03 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
21.1

Orbit Quality

RMS
0.51436
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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