SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 YZ

2016 YZ

2016 YZ belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.645 AU it takes 2.11 yr to circle the Sun.

Apollo Observations: 56
Orbital Period · P
2.11 yr
v(q)
35.2 km/s
v(Q)
15.3 km/s
Diameter · ≈
0.19 km
TJ
4.17
Eccentricity · e
0.3947

Orbit and dynamics

The path is an ellipse reaching 0.996 AU from the Sun at perihelion and 2.294 AU at aphelion, a radial span of 1.298 AU.

Applying Kepler's third law to a = 1.645 AU gives an orbital period of 2.11 yr, or about 771 days.

An eccentricity of 0.395 makes the orbit moderately elongated.

The orbital plane is tilted 12.27° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.2 km/s at perihelion and falls to 15.3 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 = 21.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.19 km.

Observation record and orbit quality

The current orbit solution is based on 56 observations and has a weighted RMS residual of 0.4937 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
1.645 AU
Eccentricity
0.3947
Perihelion
0.996 AU
Aphelion
2.294282 AU
Inclination
12.27°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
149.94°

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-Jan-23 18:43 0.186757 AU
27938388 km
12.16 km/s
2038-Apr-16 12:40 0.445644 AU
66667337 km
18.11 km/s
2055-Jan-17 13:32 0.259941 AU
38886613 km
14.09 km/s
2057-Apr-10 12:53 0.373896 AU
55934064 km
15.95 km/s
2074-Jan-11 00:50 0.348228 AU
52094191 km
16.54 km/s
2076-Apr-02 05:54 0.293672 AU
43932732 km
13.51 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
21.4

Orbit Quality

RMS
0.49374
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.

Keep exploring

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