SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 UR5

2016 UR5

2016 UR5 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.941 AU and a period of 0.91 yr.

Aten Observations: 38
Orbital Period · P
0.91 yr
v(q)
51.4 km/s
v(Q)
18.4 km/s
Diameter · ≈
0.02 km
TJ
6.26
Eccentricity · e
0.4735

Orbit and dynamics

Between its closest point (0.495 AU) and its farthest (1.386 AU), the heliocentric distance changes by 0.891 AU over every revolution.

One full revolution takes 0.91 yr (333 days), computed from the semi-major axis of 0.941 AU.

The high eccentricity (0.473) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 11.71° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 51.4 km/s at perihelion and falls to 18.4 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 = 26.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 38 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3684 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
0.9409 AU
Eccentricity
0.4735
Perihelion
0.495 AU
Aphelion
1.386416 AU
Inclination
11.71°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
125.36°

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
2027-Oct-14 23:15 0.232205 AU
34737406 km
23.45 km/s
2034-Jul-02 04:32 0.191128 AU
28592272 km
16.56 km/s
2035-Aug-07 20:39 0.380953 AU
56989828 km
10.72 km/s
2036-Sep-23 22:49 0.321905 AU
48156310 km
11.29 km/s
2037-Oct-23 04:57 0.007959 AU
1190578 km
16.40 km/s
2044-Jul-11 09:23 0.272979 AU
40837126 km
22.55 km/s
2046-Mar-21 07:58 0.479566 AU
71741988 km
20.89 km/s
2046-Sep-07 06:47 0.402706 AU
60243904 km
11.59 km/s
2047-Jan-27 15:49 0.476284 AU
71251022 km
19.16 km/s
2047-Oct-24 22:51 0.070066 AU
10481701 km
11.61 km/s
2048-Oct-10 05:21 0.317533 AU
47502216 km
26.45 km/s
2055-Jun-27 01:52 0.194366 AU
29076753 km
13.26 km/s
2056-Apr-12 02:35 0.439109 AU
65689776 km
17.89 km/s
2056-Aug-19 00:41 0.418191 AU
62560549 km
11.26 km/s
2057-Oct-05 20:34 0.286363 AU
42839308 km
10.86 km/s
2057-Dec-13 05:24 0.361203 AU
54035155 km
9.34 km/s
2058-Oct-19 11:34 0.144883 AU
21674197 km
19.95 km/s
2065-Jul-06 11:42 0.249089 AU
37263119 km
19.23 km/s
2066-May-08 20:59 0.369430 AU
55265870 km
13.30 km/s
2066-Jul-28 10:59 0.368543 AU
55133228 km
10.09 km/s
2067-Sep-17 08:53 0.387712 AU
58000826 km
11.48 km/s
2068-Jan-15 07:47 0.464876 AU
69544517 km
16.83 km/s
2068-Oct-24 21:59 0.017939 AU
2683613 km
14.19 km/s
2069-Oct-05 21:15 0.472373 AU
70665992 km
29.71 km/s
2075-Jul-17 22:44 0.410335 AU
61385190 km
26.29 km/s
2076-Jun-22 07:18 0.211717 AU
31672444 km
11.10 km/s
2077-Apr-04 13:22 0.454817 AU
68039584 km
19.11 km/s
2077-Aug-25 16:56 0.423047 AU
63286910 km
11.46 km/s
2078-Oct-12 16:58 0.242807 AU
36323363 km
10.67 km/s
2079-Oct-17 14:13 0.197326 AU
29519575 km
21.69 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
26.7

Orbit Quality

RMS
0.36837
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.

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