SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 WQ3

2016 WQ3

2016 WQ3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.017 AU it takes 1.03 yr to circle the Sun.

Apollo Observations: 39
Orbital Period · P
1.03 yr
v(q)
33.4 km/s
v(Q)
26.1 km/s
Diameter · ≈
0.01 km
TJ
5.99
Eccentricity · e
0.1224

Orbit and dynamics

Between its closest point (0.893 AU) and its farthest (1.141 AU), the heliocentric distance changes by 0.248 AU over every revolution.

One full revolution takes 1.03 yr (375 days), computed from the semi-major axis of 1.017 AU.

An eccentricity of 0.122 makes the orbit moderately elongated.

Its inclination of 0.63° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 33.4 km/s at perihelion and falls to 26.1 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 = 28.8 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 39 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3006 arcseconds.

Condition code U = 3 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
1.017 AU
Eccentricity
0.1224
Perihelion
0.893 AU
Aphelion
1.141481 AU
Inclination
0.63°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
34.35°

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
2054-Nov-13 06:55 0.379193 AU
56726411 km
14.77 km/s
2055-Nov-21 02:35 0.220975 AU
33057452 km
10.00 km/s
2056-Nov-27 15:49 0.063557 AU
9507979 km
5.27 km/s
2057-Nov-06 05:45 0.076705 AU
11474888 km
2.08 km/s
2058-Jan-07 01:53 0.071786 AU
10739030 km
2.43 km/s
2058-Sep-10 12:02 0.127726 AU
19107577 km
3.31 km/s
2059-Mar-15 12:13 0.095649 AU
14308859 km
3.20 km/s
2059-Jul-26 14:40 0.113730 AU
17013749 km
2.91 km/s
2060-May-27 02:11 0.008381 AU
1253853 km
3.20 km/s
2061-May-29 13:32 0.047707 AU
7136844 km
4.77 km/s
2062-Jun-02 04:39 0.122352 AU
18303625 km
6.94 km/s
2063-Jun-06 06:44 0.202678 AU
30320253 km
9.33 km/s
2064-Jun-09 07:47 0.285101 AU
42650570 km
11.74 km/s
2065-Jun-13 13:24 0.368611 AU
55143393 km
14.23 km/s
2066-Jun-17 15:09 0.452534 AU
67698095 km
16.70 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
28.8

Orbit Quality

RMS
0.30061
Condition
3
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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