SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 TP3

2020 TP3

2020 TP3 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.566 AU once every 1.96 yr.

Amor Observations: 98
Orbital Period · P
1.96 yr
v(q)
32 km/s
v(Q)
17.7 km/s
Diameter · ≈
0.14 km
TJ
4.34
Eccentricity · e
0.2881

Orbit and dynamics

Between its closest point (1.115 AU) and its farthest (2.017 AU), the heliocentric distance changes by 0.902 AU over every revolution.

One full revolution takes 1.96 yr (716 days), computed from the semi-major axis of 1.566 AU.

An eccentricity of 0.288 makes the orbit moderately elongated.

The orbital plane is tilted 14.32° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32 km/s at perihelion and falls to 17.7 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 = 22.01 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.14 km.

Observation record and orbit quality

Astrometry from 98 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4984 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
1.566 AU
Eccentricity
0.2881
Perihelion
1.115 AU
Aphelion
2.017165 AU
Inclination
14.32°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
331.18°

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
2065-Oct-16 12:47 0.265978 AU
39789768 km
11.15 km/s
2067-Oct-15 01:17 0.140135 AU
20963941 km
8.01 km/s
2069-Oct-21 14:44 0.318185 AU
47599755 km
8.04 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
22.01

Orbit Quality

RMS
0.49836
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

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