SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 DN4

2022 DN4

2022 DN4 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.415 AU once every 1.68 yr.

Amor Observations: 54
Orbital Period · P
1.68 yr
v(q)
31.8 km/s
v(Q)
19.7 km/s
Diameter · ≈
0.03 km
TJ
4.69
Eccentricity · e
0.2337

Orbit and dynamics

Between its closest point (1.084 AU) and its farthest (1.746 AU), the heliocentric distance changes by 0.662 AU over every revolution.

One full revolution takes 1.68 yr (615 days), computed from the semi-major axis of 1.415 AU.

An eccentricity of 0.234 makes the orbit moderately elongated.

The orbital plane is tilted 5.3° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.8 km/s at perihelion and falls to 19.7 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 25.09 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 54 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5374 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
1.415 AU
Eccentricity
0.2337
Perihelion
1.084 AU
Aphelion
1.745686 AU
Inclination
5.3°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
189.19°

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
2027-Jan-29 19:35 0.277832 AU
41563134 km
1.77 km/s
2031-Dec-12 03:14 0.441140 AU
65993619 km
5.49 km/s
2049-Jun-08 05:07 0.387310 AU
57940721 km
4.01 km/s
2054-Mar-24 07:57 0.152967 AU
22883611 km
4.53 km/s
2059-Mar-17 02:13 0.123731 AU
18509870 km
4.61 km/s
2063-Dec-26 08:59 0.365353 AU
54656104 km
4.08 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
25.09

Orbit Quality

RMS
0.53737
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.

Keep exploring

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