SpaceAtlas Space Object Data
NASA JPL SBDB · 2005 VR7

2005 VR7

2005 VR7 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.083 AU it takes 1.13 yr to circle the Sun.

Apollo Observations: 50
Orbital Period · P
1.13 yr
v(q)
38.5 km/s
v(Q)
21.3 km/s
Diameter · ≈
0.21 km
TJ
5.6
Eccentricity · e
0.2871

Orbit and dynamics

Between its closest point (0.772 AU) and its farthest (1.394 AU), the heliocentric distance changes by 0.622 AU over every revolution.

One full revolution takes 1.13 yr (412 days), computed from the semi-major axis of 1.083 AU.

An eccentricity of 0.287 makes the orbit moderately elongated.

A steep inclination of 25.25° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 38.5 km/s at perihelion and falls to 21.3 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 = 21.18 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.21 km.

Observation record and orbit quality

Astrometry from 50 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5409 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
1.083 AU
Eccentricity
0.2871
Perihelion
0.772 AU
Aphelion
1.393929 AU
Inclination
25.25°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
147.86°

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
2031-Jun-01 23:24 0.192875 AU
28853637 km
19.16 km/s
2040-Jun-04 01:29 0.115849 AU
17330741 km
17.48 km/s
2049-Jun-06 08:18 0.059163 AU
8850696 km
16.27 km/s
2050-Dec-01 08:24 0.163381 AU
24441441 km
14.00 km/s
2058-Jun-07 09:41 0.039230 AU
5868657 km
15.81 km/s
2059-Dec-02 18:47 0.144931 AU
21681298 km
14.18 km/s
2067-Jun-06 23:39 0.055722 AU
8335947 km
16.21 km/s
2068-Nov-30 06:02 0.174282 AU
26072199 km
13.93 km/s
2076-Jun-04 02:55 0.115879 AU
17335214 km
17.48 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
21.18

Orbit Quality

RMS
0.54086
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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