SpaceAtlas Space Object Data
NASA JPL SBDB · 2008 WT62

2008 WT62

2008 WT62 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.884 AU and a period of 0.83 yr.

Aten Observations: 43
Orbital Period · P
0.83 yr
v(q)
45.9 km/s
v(Q)
21.9 km/s
Diameter · ≈
0.08 km
TJ
6.62
Eccentricity · e
0.3539

Orbit and dynamics

Between its closest point (0.571 AU) and its farthest (1.197 AU), the heliocentric distance changes by 0.626 AU over every revolution.

One full revolution takes 0.83 yr (304 days), computed from the semi-major axis of 0.884 AU.

An eccentricity of 0.354 makes the orbit moderately elongated.

The orbital plane is tilted 18.19° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 45.9 km/s at perihelion and falls to 21.9 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 = 23.11 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

Astrometry from 43 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5021 arcseconds.

Condition code U = 1 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
0.8842 AU
Eccentricity
0.3539
Perihelion
0.571 AU
Aphelion
1.197118 AU
Inclination
18.19°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
270.97°

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-Sep-03 05:56 0.349927 AU
52348260 km
14.99 km/s
2028-Apr-27 00:50 0.440828 AU
65946985 km
19.30 km/s
2028-Dec-02 00:44 0.131759 AU
19710810 km
14.98 km/s
2032-Aug-31 04:22 0.324319 AU
48517473 km
12.66 km/s
2033-Apr-19 06:45 0.447983 AU
67017249 km
19.20 km/s
2033-Dec-01 09:27 0.193592 AU
28960917 km
16.94 km/s
2037-Sep-02 10:34 0.314363 AU
47028000 km
10.33 km/s
2038-Apr-11 10:04 0.453549 AU
67849971 km
18.85 km/s
2038-Nov-29 23:50 0.262467 AU
39264565 km
19.08 km/s
2042-Sep-23 01:45 0.313305 AU
46869756 km
10.11 km/s
2043-Apr-03 06:56 0.457087 AU
68379272 km
18.22 km/s
2043-Nov-28 00:15 0.335239 AU
50150985 km
21.36 km/s
2047-Jul-21 02:16 0.339754 AU
50826495 km
11.56 km/s
2047-Oct-07 15:38 0.306198 AU
45806578 km
10.58 km/s
2048-Mar-24 08:27 0.457797 AU
68485438 km
17.22 km/s
2048-Nov-24 12:16 0.412170 AU
61659800 km
23.79 km/s
2052-Jul-07 00:49 0.353387 AU
52865880 km
13.24 km/s
2052-Oct-17 16:40 0.292156 AU
43705872 km
10.91 km/s
2053-Mar-14 23:18 0.454525 AU
67996002 km
15.79 km/s
2053-Nov-21 22:46 0.486368 AU
72759580 km
26.14 km/s
2057-Jun-26 13:45 0.366006 AU
54753776 km
14.61 km/s
2057-Oct-26 22:14 0.271919 AU
40678508 km
11.07 km/s
2058-Mar-04 23:15 0.446132 AU
66740415 km
13.92 km/s
2062-Jun-16 19:58 0.378632 AU
56642549 km
15.85 km/s
2062-Nov-04 17:42 0.243852 AU
36479668 km
11.13 km/s
2063-Feb-20 03:06 0.429119 AU
64195266 km
11.05 km/s
2067-Jun-07 17:49 0.390846 AU
58469695 km
16.89 km/s
2067-Nov-12 21:29 0.209438 AU
31331416 km
11.12 km/s
2072-May-29 16:54 0.401743 AU
60099833 km
17.72 km/s
2072-Nov-19 00:05 0.171377 AU
25637598 km
11.16 km/s
2076-Sep-12 11:54 0.492624 AU
73695540 km
22.06 km/s
2077-May-21 22:04 0.412289 AU
61677574 km
18.36 km/s
2077-Nov-25 04:22 0.129960 AU
19441705 km
11.39 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
23.11

Orbit Quality

RMS
0.50209
Condition
1
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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