SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 NO

2023 NO

2023 NO belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.419 AU it takes 1.69 yr to circle the Sun.

Apollo Observations: 18
Orbital Period · P
1.69 yr
v(q)
35.9 km/s
v(Q)
17.4 km/s
Diameter · ≈
0.01 km
TJ
4.65
Eccentricity · e
0.3464

Orbit and dynamics

Between its closest point (0.927 AU) and its farthest (1.911 AU), the heliocentric distance changes by 0.984 AU over every revolution.

One full revolution takes 1.69 yr (617 days), computed from the semi-major axis of 1.419 AU.

An eccentricity of 0.346 makes the orbit moderately elongated.

Its inclination of 1.22° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 35.9 km/s at perihelion and falls to 17.4 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 = 28.65 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 18 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5116 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
1.419 AU
Eccentricity
0.3464
Perihelion
0.927 AU
Aphelion
1.910542 AU
Inclination
1.22°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
287.26°

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-Aug-04 19:13 0.379611 AU
56789039 km
20.38 km/s
2040-Mar-08 13:44 0.125510 AU
18776061 km
16.32 km/s
2062-Feb-28 21:53 0.264236 AU
39529137 km
21.27 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
28.65

Orbit Quality

RMS
0.51162
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.

Keep exploring

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