SpaceAtlas Space Object Data
NASA JPL SBDB · 2010 SF

2010 SF

2010 SF is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.839 AU and a period of 0.77 yr.

Aten Observations: 47
Orbital Period · P
0.77 yr
v(q)
40.7 km/s
v(Q)
26 km/s
Diameter · ≈
0.03 km
TJ
6.98
Eccentricity · e
0.2198

Orbit and dynamics

Between its closest point (0.654 AU) and its farthest (1.023 AU), the heliocentric distance changes by 0.369 AU over every revolution.

One full revolution takes 0.77 yr (280 days), computed from the semi-major axis of 0.839 AU.

An eccentricity of 0.22 makes the orbit moderately elongated.

The orbital plane is tilted 9.35° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 40.7 km/s at perihelion and falls to 26 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 = 25.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 47 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4159 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
0.8386 AU
Eccentricity
0.2198
Perihelion
0.654 AU
Aphelion
1.022924 AU
Inclination
9.35°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
357.1°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
25.4

Orbit Quality

RMS
0.41589
Condition
7
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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.