SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 BC16

2020 BC16

2020 BC16 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.035 AU it takes 1.05 yr to circle the Sun.

Apollo Observations: 40
Orbital Period · P
1.05 yr
v(q)
33.2 km/s
v(Q)
25.8 km/s
Diameter · ≈
0.03 km
TJ
5.9
Eccentricity · e
0.1251

Orbit and dynamics

Between its closest point (0.906 AU) and its farthest (1.164 AU), the heliocentric distance changes by 0.258 AU over every revolution.

One full revolution takes 1.05 yr (385 days), computed from the semi-major axis of 1.035 AU.

An eccentricity of 0.125 makes the orbit moderately elongated.

The orbital plane is tilted 11.36° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.2 km/s at perihelion and falls to 25.8 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

No direct size measurement is available; from an absolute magnitude of H = 25.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 40 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4871 arcseconds.

Condition code U = 6 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
1.035 AU
Eccentricity
0.1251
Perihelion
0.906 AU
Aphelion
1.164478 AU
Inclination
11.36°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
259.61°

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
2039-Mar-01 07:23 0.170722 AU
25539704 km
11.10 km/s
2040-Feb-15 00:24 0.126237 AU
18884855 km
6.18 km/s
2041-Sep-01 03:43 0.052866 AU
7908708 km
8.50 km/s
2042-Sep-19 03:25 0.383904 AU
57431223 km
17.09 km/s
2058-Feb-26 04:30 0.318292 AU
47615791 km
14.71 km/s
2059-Feb-28 01:15 0.056714 AU
8484284 km
6.93 km/s
2059-Dec-30 13:33 0.256609 AU
38388224 km
5.58 km/s
2060-Aug-21 19:51 0.045641 AU
6827832 km
6.52 km/s
2061-Sep-12 18:46 0.268336 AU
40142498 km
13.63 km/s
2078-Feb-28 14:54 0.174801 AU
26149856 km
11.51 km/s
2079-Feb-17 01:50 0.109926 AU
16444711 km
6.18 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
25.1

Orbit Quality

RMS
0.48711
Condition
6
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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