SpaceAtlas Space Object Data
NASA JPL SBDB · 196068

196068

196068 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.118 AU it takes 3.08 yr to circle the Sun.

Apollo Observations: 145
Orbital Period · P
3.08 yr
v(q)
45.6 km/s
v(Q)
9.2 km/s
Diameter · ≈
0.84 km
TJ
2.94
Eccentricity · e
0.6647

Orbit and dynamics

The path is an ellipse reaching 0.71 AU from the Sun at perihelion and 3.526 AU at aphelion, a radial span of 2.816 AU.

Applying Kepler's third law to a = 2.118 AU gives an orbital period of 3.08 yr, or about 1,126 days.

The high eccentricity (0.665) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 59.33° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 45.6 km/s at perihelion and falls to 9.2 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 = 18.13 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.84 km.

Observation record and orbit quality

The current orbit solution is based on 145 observations and has a weighted RMS residual of 0.5266 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
2.118 AU
Eccentricity
0.6647
Perihelion
0.71 AU
Aphelion
3.525835 AU
Inclination
59.33°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
277.27°

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
2036-Apr-12 18:07 0.224158 AU
33533509 km
39.80 km/s
2039-May-04 15:13 0.247425 AU
37014247 km
32.52 km/s
2042-Oct-12 06:17 0.492097 AU
73616713 km
28.58 km/s
2045-Oct-21 20:38 0.359003 AU
53706121 km
35.04 km/s
2073-Apr-03 21:05 0.410362 AU
61389249 km
43.77 km/s
2076-Apr-24 08:36 0.046427 AU
6945326 km
35.41 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
18.13

Orbit Quality

RMS
0.52658
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

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