SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 CZ135

2016 CZ135

2016 CZ135 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.252 AU it takes 1.40 yr to circle the Sun.

Apollo Observations: 165
Orbital Period · P
1.40 yr
v(q)
41.5 km/s
v(Q)
17.1 km/s
Diameter · ≈
0.27 km
TJ
5.04
Eccentricity · e
0.416

Orbit and dynamics

Between its closest point (0.731 AU) and its farthest (1.773 AU), the heliocentric distance changes by 1.042 AU over every revolution.

One full revolution takes 1.40 yr (512 days), computed from the semi-major axis of 1.252 AU.

The high eccentricity (0.416) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 8.21° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 41.5 km/s at perihelion and falls to 17.1 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 = 20.62 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.27 km.

Observation record and orbit quality

Astrometry from 165 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5611 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
1.252 AU
Eccentricity
0.416
Perihelion
0.731 AU
Aphelion
1.772832 AU
Inclination
8.21°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
357.81°

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
2030-Oct-16 17:27 0.092856 AU
13891028 km
13.04 km/s
2037-Oct-19 09:17 0.100484 AU
15032199 km
14.11 km/s
2040-Apr-18 03:36 0.172166 AU
25755594 km
16.70 km/s
2044-Oct-22 06:04 0.125309 AU
18745892 km
15.41 km/s
2047-Apr-20 19:27 0.144872 AU
21672514 km
15.56 km/s
2051-Oct-25 07:04 0.152065 AU
22748595 km
16.46 km/s
2054-Apr-22 08:48 0.125372 AU
18755458 km
14.47 km/s
2058-Oct-27 01:35 0.180524 AU
27006076 km
17.48 km/s
2061-Apr-24 04:23 0.114369 AU
17109411 km
13.28 km/s
2068-Apr-26 19:22 0.120877 AU
18082963 km
11.75 km/s
2075-Apr-30 03:31 0.140486 AU
21016387 km
10.53 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
20.62

Orbit Quality

RMS
0.56105
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.

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