SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 RZ17

2016 RZ17

2016 RZ17 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.022 AU it takes 1.03 yr to circle the Sun.

Apollo Observations: 54
Orbital Period · P
1.03 yr
v(q)
31.2 km/s
v(Q)
27.8 km/s
Diameter · ≈
0.03 km
TJ
5.87
Eccentricity · e
0.0579

Orbit and dynamics

Between its closest point (0.963 AU) and its farthest (1.081 AU), the heliocentric distance changes by 0.118 AU over every revolution.

One full revolution takes 1.03 yr (377 days), computed from the semi-major axis of 1.022 AU.

With e = 0.058, the orbit is close to circular.

A steep inclination of 29.05° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 31.2 km/s at perihelion and falls to 27.8 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 = 25.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 54 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3278 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
1.022 AU
Eccentricity
0.0579
Perihelion
0.963 AU
Aphelion
1.081174 AU
Inclination
29.05°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
64.24°

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
2045-Aug-26 10:22 0.155680 AU
23289467 km
20.41 km/s
2046-Sep-01 13:20 0.002149 AU
321453 km
16.96 km/s
2047-Sep-06 20:43 0.016221 AU
2426642 km
14.97 km/s
2049-Sep-13 18:48 0.093846 AU
14039133 km
16.92 km/s
2050-Mar-12 23:18 0.041090 AU
6146921 km
17.70 km/s
2051-Mar-19 13:21 0.244629 AU
36595921 km
21.43 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
25.5

Orbit Quality

RMS
0.32779
Condition
7
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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