SpaceAtlas Space Object Data
NASA JPL SBDB · 2018 VP7

2018 VP7

2018 VP7 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.197 AU it takes 1.31 yr to circle the Sun.

Apollo Observations: 37
Orbital Period · P
1.31 yr
v(q)
35.2 km/s
v(Q)
21.1 km/s
Diameter · ≈
0.02 km
TJ
5.28
Eccentricity · e
0.2502

Orbit and dynamics

Between its closest point (0.897 AU) and its farthest (1.496 AU), the heliocentric distance changes by 0.599 AU over every revolution.

One full revolution takes 1.31 yr (478 days), computed from the semi-major axis of 1.197 AU.

An eccentricity of 0.25 makes the orbit moderately elongated.

Its inclination of 3.04° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 35.2 km/s at perihelion and falls to 21.1 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 = 26.8 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 37 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3211 arcseconds.

Condition code U = 6 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
1.197 AU
Eccentricity
0.2502
Perihelion
0.897 AU
Aphelion
1.496489 AU
Inclination
3.04°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
240.74°

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-Jul-23 10:45 0.479589 AU
71745437 km
8.19 km/s
2031-Aug-29 00:44 0.393496 AU
58866180 km
7.03 km/s
2032-Apr-02 21:58 0.213811 AU
31985729 km
13.91 km/s
2039-Oct-28 08:32 0.233129 AU
34875530 km
15.23 km/s
2040-Jun-07 04:15 0.399475 AU
59760544 km
7.25 km/s
2044-Jul-12 16:22 0.481851 AU
72083835 km
8.21 km/s
2048-Aug-16 01:41 0.428881 AU
64159654 km
7.61 km/s
2049-Apr-10 07:33 0.331599 AU
49606454 km
18.06 km/s
2056-Nov-03 10:52 0.084886 AU
12698713 km
11.42 km/s
2057-May-26 14:55 0.345321 AU
51659356 km
6.58 km/s
2061-Jul-05 10:05 0.469564 AU
70245841 km
8.12 km/s
2065-Aug-10 03:02 0.440843 AU
65949216 km
7.82 km/s
2066-Apr-14 05:50 0.375675 AU
56200161 km
20.14 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
26.8

Orbit Quality

RMS
0.32111
Condition
6
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.

Keep exploring

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