SpaceAtlas Space Object Data
NASA JPL SBDB · 2011 YT62

2011 YT62

2011 YT62 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.199 AU it takes 1.31 yr to circle the Sun.

Apollo Observations: 56
Orbital Period · P
1.31 yr
v(q)
33.1 km/s
v(Q)
22.4 km/s
Diameter · ≈
0.12 km
TJ
5.28
Eccentricity · e
0.1937

Orbit and dynamics

The path is an ellipse reaching 0.967 AU from the Sun at perihelion and 1.431 AU at aphelion, a radial span of 0.464 AU.

Applying Kepler's third law to a = 1.199 AU gives an orbital period of 1.31 yr, or about 480 days.

An eccentricity of 0.194 makes the orbit moderately elongated.

The orbital plane is tilted 6.14° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.1 km/s at perihelion and falls to 22.4 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 = 22.29 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.12 km.

Observation record and orbit quality

The current orbit solution is based on 56 observations and has a weighted RMS residual of 0.581 arcseconds.

Condition code U = 1 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
1.199 AU
Eccentricity
0.1937
Perihelion
0.967 AU
Aphelion
1.431246 AU
Inclination
6.14°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
58.3°

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
2032-Nov-01 14:52 0.018226 AU
2726507 km
4.91 km/s
2053-Oct-30 12:36 0.020056 AU
3000334 km
4.83 km/s
2070-Nov-29 23:18 0.179344 AU
26829520 km
10.10 km/s
2074-Aug-23 06:39 0.112706 AU
16860608 km
6.37 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
22.29

Orbit Quality

RMS
0.58102
Condition
1
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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