SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 MQ7

2017 MQ7

2017 MQ7 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.404 AU it takes 3.73 yr to circle the Sun.

Apollo Observations: 57
Orbital Period · P
3.73 yr
v(q)
38.5 km/s
v(Q)
9.6 km/s
Diameter · ≈
0.08 km
TJ
3.24
Eccentricity · e
0.602

Orbit and dynamics

The path is an ellipse reaching 0.957 AU from the Sun at perihelion and 3.851 AU at aphelion, a radial span of 2.894 AU.

Applying Kepler's third law to a = 2.404 AU gives an orbital period of 3.73 yr, or about 1,361 days.

The high eccentricity (0.602) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 7.65° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 38.5 km/s at perihelion and falls to 9.6 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 = 23.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

The current orbit solution is based on 57 observations and has a weighted RMS residual of 0.4466 arcseconds.

Condition code U = 4 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
2.404 AU
Eccentricity
0.602
Perihelion
0.957 AU
Aphelion
3.851208 AU
Inclination
7.65°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
136.63°

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
2043-Aug-22 14:48 0.131170 AU
19622803 km
10.03 km/s
2069-Jun-09 06:29 0.211222 AU
31598405 km
18.57 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
23.2

Orbit Quality

RMS
0.44659
Condition
4
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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