SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 PR

2023 PR

2023 PR belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.042 AU it takes 1.06 yr to circle the Sun.

Apollo Observations: 55
Orbital Period · P
1.06 yr
v(q)
34.6 km/s
v(Q)
24.6 km/s
Diameter · ≈
0.04 km
TJ
5.88
Eccentricity · e
0.1702

Orbit and dynamics

Between its closest point (0.865 AU) and its farthest (1.219 AU), the heliocentric distance changes by 0.354 AU over every revolution.

One full revolution takes 1.06 yr (389 days), computed from the semi-major axis of 1.042 AU.

An eccentricity of 0.17 makes the orbit moderately elongated.

Its inclination of 1.02° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 34.6 km/s at perihelion and falls to 24.6 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 = 24.52 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 55 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4275 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
1.042 AU
Eccentricity
0.1702
Perihelion
0.865 AU
Aphelion
1.219348 AU
Inclination
1.02°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
311.82°

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
2037-Jan-19 14:14 0.469864 AU
70290648 km
20.32 km/s
2038-Feb-06 09:58 0.066948 AU
10015318 km
8.10 km/s
2038-Dec-07 20:18 0.201038 AU
30074828 km
5.09 km/s
2039-May-18 14:13 0.142747 AU
21354632 km
5.11 km/s
2039-Oct-02 08:07 0.185128 AU
27694757 km
4.61 km/s
2040-Aug-14 02:13 0.118491 AU
17726065 km
9.45 km/s
2054-Jan-24 14:33 0.382733 AU
57256008 km
16.97 km/s
2055-Feb-12 18:27 0.023263 AU
3480140 km
4.80 km/s
2055-Nov-17 03:55 0.229367 AU
34312816 km
5.52 km/s
2056-Jun-30 17:06 0.102683 AU
15361211 km
3.82 km/s
2057-Aug-20 01:36 0.285179 AU
42662122 km
13.86 km/s
2070-Jan-20 17:20 0.441452 AU
66040238 km
19.42 km/s
2071-Feb-08 10:15 0.028087 AU
4201738 km
6.82 km/s
2071-Nov-29 21:59 0.215271 AU
32204111 km
5.31 km/s
2072-May-31 07:57 0.133357 AU
19949881 km
4.89 km/s
2072-Sep-20 10:29 0.164776 AU
24650187 km
4.15 km/s
2073-Aug-16 07:22 0.178032 AU
26633246 km
10.96 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
24.52

Orbit Quality

RMS
0.42749
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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