SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 AM1

2023 AM1

2023 AM1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.134 AU it takes 1.21 yr to circle the Sun.

Apollo Observations: 39
Orbital Period · P
1.21 yr
v(q)
33.4 km/s
v(Q)
23.5 km/s
Diameter · ≈
0.02 km
TJ
5.5
Eccentricity · e
0.1739

Orbit and dynamics

The path is an ellipse reaching 0.936 AU from the Sun at perihelion and 1.331 AU at aphelion, a radial span of 0.395 AU.

Applying Kepler's third law to a = 1.134 AU gives an orbital period of 1.21 yr, or about 441 days.

An eccentricity of 0.174 makes the orbit moderately elongated.

The orbital plane is tilted 6.38° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.4 km/s at perihelion and falls to 23.5 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 = 26.43 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

The current orbit solution is based on 39 observations and has a weighted RMS residual of 0.3769 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.134 AU
Eccentricity
0.1739
Perihelion
0.936 AU
Aphelion
1.331203 AU
Inclination
6.38°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
244.06°

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
2028-Dec-21 07:15 0.190666 AU
28523285 km
3.93 km/s
2029-Jun-08 00:35 0.080494 AU
12041786 km
4.52 km/s
2034-Nov-07 12:39 0.293748 AU
43944117 km
5.56 km/s
2035-Jun-14 18:03 0.153308 AU
22934557 km
10.59 km/s
2041-Jun-24 17:13 0.350941 AU
52499972 km
17.45 km/s
2046-Jan-08 07:34 0.246834 AU
36925776 km
15.90 km/s
2052-Jan-20 04:30 0.028151 AU
4211260 km
8.73 km/s
2064-Jun-09 10:41 0.080986 AU
12115321 km
7.29 km/s
2069-Oct-19 23:55 0.338909 AU
50700064 km
6.07 km/s
2070-Jun-20 13:16 0.337155 AU
50437682 km
14.52 km/s
2075-Jan-04 10:27 0.398989 AU
59687847 km
18.65 km/s
2075-Sep-18 22:58 0.343317 AU
51359465 km
6.32 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
26.43

Orbit Quality

RMS
0.37693
Condition
7
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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