SpaceAtlas Space Object Data
NASA JPL SBDB · 86667

86667

86667 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.859 AU and a period of 0.80 yr.

Aten Observations: 2,444
Orbital Period · P
0.80 yr
v(q)
63.8 km/s
v(Q)
16.2 km/s
Diameter · ≈
1.1 km
TJ
6.69
Eccentricity · e
0.5946

Orbit and dynamics

Between its closest point (0.348 AU) and its farthest (1.37 AU), the heliocentric distance changes by 1.022 AU over every revolution.

One full revolution takes 0.80 yr (291 days), computed from the semi-major axis of 0.859 AU.

The high eccentricity (0.595) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 14.29° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 63.8 km/s at perihelion and falls to 16.2 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

The measured diameter is 0.74 km, a value from direct size determination rather than from brightness alone.

A geometric albedo of 0.349 points to a comparatively bright, reflective surface.

Observation record and orbit quality

Astrometry from 2,444 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4322 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
0.8594 AU
Eccentricity
0.5946
Perihelion
0.348 AU
Aphelion
1.370399 AU
Inclination
14.29°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
116.48°

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-Mar-05 10:31 0.222552 AU
33293319 km
14.76 km/s
2028-May-18 19:15 0.149267 AU
22330050 km
16.25 km/s
2031-Mar-11 03:25 0.266628 AU
39886911 km
14.08 km/s
2032-May-18 22:13 0.134613 AU
20137762 km
18.43 km/s
2035-Mar-18 02:05 0.307329 AU
45975721 km
14.09 km/s
2036-May-17 04:35 0.171972 AU
25726687 km
21.12 km/s
2039-Mar-25 06:08 0.339015 AU
50715931 km
14.28 km/s
2040-May-14 06:45 0.243126 AU
36371100 km
24.08 km/s
2043-Apr-01 06:56 0.360127 AU
53874188 km
14.44 km/s
2044-May-10 17:19 0.327910 AU
49054601 km
27.19 km/s
2047-Apr-08 02:42 0.369941 AU
55342387 km
14.54 km/s
2048-May-06 18:51 0.417641 AU
62478246 km
30.41 km/s
2050-Mar-16 20:28 0.470736 AU
70421173 km
31.49 km/s
2051-Apr-14 21:22 0.368049 AU
55059292 km
14.56 km/s
2054-Mar-12 15:11 0.382188 AU
57174529 km
28.19 km/s
2055-Apr-21 18:38 0.354511 AU
53034147 km
14.47 km/s
2058-Mar-08 17:43 0.299431 AU
44794288 km
24.90 km/s
2059-Apr-28 15:17 0.329514 AU
49294528 km
14.30 km/s
2062-Mar-05 09:39 0.230257 AU
34445898 km
21.71 km/s
2063-May-05 13:46 0.292272 AU
43723229 km
14.16 km/s
2066-Mar-03 04:24 0.189921 AU
28411783 km
18.77 km/s
2067-May-12 03:44 0.245067 AU
36661561 km
14.24 km/s
2070-Mar-02 23:10 0.192040 AU
28728809 km
16.24 km/s
2071-May-17 10:21 0.191811 AU
28694498 km
14.89 km/s
2074-Mar-06 00:42 0.227135 AU
33978956 km
14.63 km/s
2075-May-19 23:09 0.145772 AU
21807151 km
16.46 km/s
2078-Mar-12 01:49 0.271816 AU
40663148 km
14.08 km/s
2079-May-19 19:47 0.137515 AU
20572017 km
18.77 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
0.745 km
Albedo
0.349
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
17.54

Orbit Quality

RMS
0.43222
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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