SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 SP20

2022 SP20

2022 SP20 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.181 AU once every 1.28 yr.

Amor Observations: 28
Orbital Period · P
1.28 yr
v(q)
31.3 km/s
v(Q)
24 km/s
Diameter · ≈
0.05 km
TJ
5.33
Eccentricity · e
0.1331

Orbit and dynamics

Between its closest point (1.024 AU) and its farthest (1.338 AU), the heliocentric distance changes by 0.314 AU over every revolution.

One full revolution takes 1.28 yr (469 days), computed from the semi-major axis of 1.181 AU.

An eccentricity of 0.133 makes the orbit moderately elongated.

The orbital plane is tilted 12.44° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.3 km/s at perihelion and falls to 24 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 = 24.28 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

Astrometry from 28 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6154 arcseconds.

Condition code U = 5 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
1.181 AU
Eccentricity
0.1331
Perihelion
1.024 AU
Aphelion
1.338191 AU
Inclination
12.44°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
242.39°

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-Jun-04 03:35 0.392501 AU
58717279 km
5.98 km/s
2031-Oct-19 06:25 0.119088 AU
17815314 km
6.84 km/s
2032-Feb-28 18:01 0.193132 AU
28892174 km
7.78 km/s
2036-Jun-16 04:38 0.403824 AU
60411250 km
5.61 km/s
2040-Oct-23 04:35 0.127114 AU
19015982 km
7.47 km/s
2041-Mar-06 04:43 0.162733 AU
24344477 km
7.15 km/s
2045-Jun-29 17:52 0.407750 AU
60998602 km
5.33 km/s
2049-Oct-26 21:15 0.160514 AU
24012499 km
8.61 km/s
2050-Mar-14 08:56 0.158232 AU
23671183 km
6.81 km/s
2054-Jul-15 19:41 0.395928 AU
59229925 km
5.24 km/s
2058-Oct-29 01:06 0.222598 AU
33300248 km
10.53 km/s
2059-Mar-24 22:23 0.172049 AU
25738226 km
6.76 km/s
2067-Oct-29 08:43 0.312494 AU
46748418 km
13.27 km/s
2068-Apr-06 07:42 0.207723 AU
31074924 km
6.86 km/s
2076-Oct-26 19:29 0.422330 AU
63179713 km
16.51 km/s
2077-Apr-21 16:52 0.259493 AU
38819630 km
6.88 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
24.28

Orbit Quality

RMS
0.61538
Condition
5
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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