SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 BA3

2023 BA3

2023 BA3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.381 AU it takes 1.62 yr to circle the Sun.

Apollo Observations: 52
Orbital Period · P
1.62 yr
v(q)
36.4 km/s
v(Q)
17.6 km/s
Diameter · ≈
0.02 km
TJ
4.73
Eccentricity · e
0.3475

Orbit and dynamics

Between its closest point (0.901 AU) and its farthest (1.861 AU), the heliocentric distance changes by 0.96 AU over every revolution.

One full revolution takes 1.62 yr (593 days), computed from the semi-major axis of 1.381 AU.

An eccentricity of 0.347 makes the orbit moderately elongated.

The orbital plane is tilted 5.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 36.4 km/s at perihelion and falls to 17.6 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 = 26.46 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 52 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3594 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
1.381 AU
Eccentricity
0.3475
Perihelion
0.901 AU
Aphelion
1.860897 AU
Inclination
5.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
0.79°

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
2031-Jun-09 15:21 0.296208 AU
44312057 km
17.38 km/s
2036-Jan-20 01:39 0.076278 AU
11411064 km
12.49 km/s
2036-Jul-07 03:06 0.447864 AU
66999529 km
6.95 km/s
2044-May-31 10:15 0.132631 AU
19841308 km
12.99 km/s
2049-Jan-10 05:57 0.210294 AU
31459598 km
17.21 km/s
2062-Jan-03 09:12 0.333492 AU
49889630 km
21.47 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
26.46

Orbit Quality

RMS
0.35942
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.

Keep exploring

Explore asteroids, comets and near-Earth objects with JPL orbital data.