SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 BX3

2020 BX3

2020 BX3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.753 AU it takes 2.32 yr to circle the Sun.

Apollo Observations: 57
Orbital Period · P
2.32 yr
v(q)
51.4 km/s
v(Q)
9.8 km/s
Diameter · ≈
0.39 km
TJ
3.74
Eccentricity · e
0.6786

Orbit and dynamics

Between its closest point (0.563 AU) and its farthest (2.943 AU), the heliocentric distance changes by 2.38 AU over every revolution.

One full revolution takes 2.32 yr (848 days), computed from the semi-major axis of 1.753 AU.

The high eccentricity (0.679) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 25.32° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 51.4 km/s at perihelion and falls to 9.8 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 = 19.82 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.39 km.

Observation record and orbit quality

Astrometry from 57 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6063 arcseconds.

Condition code U = 1 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
1.753 AU
Eccentricity
0.6786
Perihelion
0.563 AU
Aphelion
2.942586 AU
Inclination
25.32°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
208.42°

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
2034-Mar-18 05:55 0.349804 AU
52329926 km
18.46 km/s
2041-Mar-10 17:59 0.296308 AU
44327008 km
24.39 km/s
2043-Oct-06 14:37 0.420666 AU
62930812 km
31.47 km/s
2048-Mar-01 15:40 0.394132 AU
58961315 km
30.77 km/s
2050-Sep-22 05:43 0.316723 AU
47381113 km
26.61 km/s
2057-Sep-03 07:44 0.305164 AU
45651929 km
23.57 km/s
2064-Aug-12 05:43 0.366394 AU
54811796 km
23.78 km/s
2071-Jul-21 01:22 0.439497 AU
65747763 km
25.32 km/s
2078-Jun-27 22:16 0.497440 AU
74415949 km
25.88 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
19.82

Orbit Quality

RMS
0.60626
Condition
1
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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