SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 BJ15

2016 BJ15

2016 BJ15 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.808 AU it takes 2.43 yr to circle the Sun.

Apollo Observations: 245
Orbital Period · P
2.43 yr
v(q)
39.4 km/s
v(Q)
12.5 km/s
Diameter · ≈
0.08 km
TJ
3.88
Eccentricity · e
0.5193

Orbit and dynamics

The path is an ellipse reaching 0.869 AU from the Sun at perihelion and 2.747 AU at aphelion, a radial span of 1.878 AU.

Applying Kepler's third law to a = 1.808 AU gives an orbital period of 2.43 yr, or about 888 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 2.99° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 39.4 km/s at perihelion and falls to 12.5 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 0.08 km, a value from direct size determination rather than from brightness alone.

A geometric albedo of 0.113 points to a comparatively bright, reflective surface.

Observation record and orbit quality

The current orbit solution is based on 245 observations and has a weighted RMS residual of 0.2916 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.808 AU
Eccentricity
0.5193
Perihelion
0.869 AU
Aphelion
2.746894 AU
Inclination
2.99°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
109.07°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
0.08 km
Albedo
0.113
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
23.3

Orbit Quality

RMS
0.29159
Condition
7
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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