SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 CF2

2020 CF2

2020 CF2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.195 AU it takes 1.31 yr to circle the Sun.

Apollo Observations: 116
Orbital Period · P
1.31 yr
v(q)
33 km/s
v(Q)
22.5 km/s
Diameter · ≈
0.01 km
TJ
5.3
Eccentricity · e
0.19

Orbit and dynamics

Between its closest point (0.968 AU) and its farthest (1.422 AU), the heliocentric distance changes by 0.454 AU over every revolution.

One full revolution takes 1.31 yr (477 days), computed from the semi-major axis of 1.195 AU.

An eccentricity of 0.19 makes the orbit moderately elongated.

Its inclination of 1.15° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 33 km/s at perihelion and falls to 22.5 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 = 27.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 116 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4258 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
1.195 AU
Eccentricity
0.19
Perihelion
0.968 AU
Aphelion
1.42205 AU
Inclination
1.15°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
323.96°

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-Jul-17 08:42 0.404653 AU
60535268 km
6.83 km/s
2032-Sep-06 09:36 0.321038 AU
48026571 km
5.37 km/s
2033-Mar-17 11:05 0.352148 AU
52680626 km
14.09 km/s
2036-Nov-30 15:59 0.060808 AU
9096750 km
5.16 km/s
2037-Mar-24 15:50 0.175518 AU
26257097 km
1.29 km/s
2041-Jun-20 18:08 0.384507 AU
57521477 km
6.47 km/s
2045-Aug-13 02:48 0.374336 AU
55999897 km
6.37 km/s
2050-Feb-14 07:24 0.002897 AU
433420 km
3.56 km/s
2057-Nov-19 00:05 0.217338 AU
32513256 km
11.71 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
27.6

Orbit Quality

RMS
0.42578
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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