SpaceAtlas Space Object Data
NASA JPL SBDB · 2007 XB23

2007 XB23

2007 XB23 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.028 AU it takes 1.04 yr to circle the Sun.

Apollo Observations: 22
Orbital Period · P
1.04 yr
v(q)
30.6 km/s
v(Q)
28.2 km/s
Diameter · ≈
0.01 km
TJ
5.94
Eccentricity · e
0.0417

Orbit and dynamics

The path is an ellipse reaching 0.985 AU from the Sun at perihelion and 1.071 AU at aphelion, a radial span of 0.086 AU.

Applying Kepler's third law to a = 1.028 AU gives an orbital period of 1.04 yr, or about 381 days.

With e = 0.042, the orbit is close to circular.

The orbital plane is tilted 8.59° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 30.6 km/s at perihelion and falls to 28.2 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 = 27.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 22 observations and has a weighted RMS residual of 0.4135 arcseconds.

Condition code U = 0 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
1.028 AU
Eccentricity
0.0417
Perihelion
0.985 AU
Aphelion
1.070868 AU
Inclination
8.59°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
138.65°

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
2049-Jul-03 04:42 0.124711 AU
18656531 km
4.94 km/s
2049-Dec-12 21:36 0.018114 AU
2709867 km
4.61 km/s
2050-May-18 00:52 0.121590 AU
18189544 km
5.04 km/s
2070-Dec-02 20:23 0.142297 AU
21287333 km
6.81 km/s
2071-Jun-16 17:11 0.066566 AU
9958113 km
4.50 km/s
2071-Dec-20 01:15 0.120389 AU
18009946 km
6.07 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
27.1

Orbit Quality

RMS
0.41347
Condition
0
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

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