SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 VF4

2023 VF4

2023 VF4 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.446 AU it takes 1.74 yr to circle the Sun.

Apollo Observations: 74
Orbital Period · P
1.74 yr
v(q)
40.1 km/s
v(Q)
15.3 km/s
Diameter · ≈
0.02 km
TJ
4.54
Eccentricity · e
0.4472

Orbit and dynamics

Between its closest point (0.799 AU) and its farthest (2.093 AU), the heliocentric distance changes by 1.294 AU over every revolution.

One full revolution takes 1.74 yr (635 days), computed from the semi-major axis of 1.446 AU.

The high eccentricity (0.447) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 2.26° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 40.1 km/s at perihelion and falls to 15.3 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 = 25.82 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 74 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3982 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
1.446 AU
Eccentricity
0.4472
Perihelion
0.799 AU
Aphelion
2.092651 AU
Inclination
2.26°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
203.3°

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
2030-Sep-18 07:18 0.186957 AU
27968334 km
10.00 km/s
2037-Jul-23 06:32 0.165690 AU
24786878 km
9.54 km/s
2044-Jun-08 21:45 0.023922 AU
3578703 km
13.58 km/s
2051-May-23 10:32 0.330851 AU
49494676 km
22.71 km/s
2056-Nov-16 00:32 0.176276 AU
26370563 km
17.66 km/s
2063-Oct-15 17:01 0.114350 AU
17106449 km
9.03 km/s
2070-Aug-06 13:32 0.193542 AU
28953519 km
10.18 km/s
2077-Jun-10 05:21 0.024384 AU
3647769 km
13.29 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
25.82

Orbit Quality

RMS
0.39815
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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