SpaceAtlas Space Object Data
NASA JPL SBDB · 1998 VD32

1998 VD32

1998 VD32 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.104 AU it takes 1.16 yr to circle the Sun.

Apollo Observations: 135
Orbital Period · P
1.16 yr
v(q)
39.3 km/s
v(Q)
20.4 km/s
Diameter · ≈
0.1 km
TJ
5.59
Eccentricity · e
0.3164

Orbit and dynamics

The path is an ellipse reaching 0.755 AU from the Sun at perihelion and 1.453 AU at aphelion, a radial span of 0.698 AU.

Applying Kepler's third law to a = 1.104 AU gives an orbital period of 1.16 yr, or about 424 days.

An eccentricity of 0.316 makes the orbit moderately elongated.

Its inclination of 1.95° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 39.3 km/s at perihelion and falls to 20.4 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 = 22.65 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.1 km.

Observation record and orbit quality

The current orbit solution is based on 135 observations and has a weighted RMS residual of 0.569 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
1.104 AU
Eccentricity
0.3164
Perihelion
0.755 AU
Aphelion
1.453306 AU
Inclination
1.95°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
219.87°

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-Nov-18 03:34 0.181109 AU
27093589 km
14.55 km/s
2028-Sep-05 21:34 0.437891 AU
65507589 km
9.02 km/s
2029-May-22 11:51 0.076823 AU
11492594 km
7.12 km/s
2034-Nov-05 04:14 0.450844 AU
67445345 km
22.79 km/s
2035-Sep-29 21:42 0.384204 AU
57476106 km
8.24 km/s
2036-Mar-14 09:33 0.228425 AU
34171945 km
8.94 km/s
2036-Jul-04 16:24 0.312020 AU
46677597 km
6.66 km/s
2042-Nov-09 18:17 0.228020 AU
34111361 km
5.19 km/s
2043-Jan-13 18:03 0.193793 AU
28990988 km
7.41 km/s
2043-Aug-06 10:05 0.416974 AU
62378449 km
8.61 km/s
2044-Jun-12 12:50 0.314150 AU
46996197 km
18.35 km/s
2049-Nov-22 14:32 0.080555 AU
12050926 km
11.41 km/s
2050-Aug-30 02:38 0.440989 AU
65971046 km
9.05 km/s
2051-May-29 13:32 0.035405 AU
5296557 km
9.63 km/s
2056-Nov-08 09:48 0.378444 AU
56614364 km
20.56 km/s
2057-Sep-23 06:18 0.403473 AU
60358765 km
8.54 km/s
2058-Mar-29 14:16 0.212615 AU
31806737 km
8.17 km/s
2058-Jun-24 12:31 0.269552 AU
40324411 km
5.79 km/s
2064-Oct-27 22:56 0.274941 AU
41130519 km
6.23 km/s
2065-Jan-28 04:46 0.216319 AU
32360837 km
8.43 km/s
2065-Jul-31 13:54 0.402370 AU
60193646 km
8.36 km/s
2066-Jun-16 09:32 0.377328 AU
56447529 km
20.22 km/s
2071-Nov-26 00:07 0.038994 AU
5833471 km
9.89 km/s
2072-Aug-26 12:33 0.439721 AU
65781273 km
9.03 km/s
2073-May-31 19:38 0.065133 AU
9743754 km
10.81 km/s
2078-Nov-08 19:44 0.387512 AU
57970960 km
20.82 km/s
2079-Sep-25 08:21 0.398785 AU
59657403 km
8.48 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
22.65

Orbit Quality

RMS
0.56896
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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