SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 QO

2017 QO

2017 QO belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.069 AU it takes 1.11 yr to circle the Sun.

Apollo Observations: 21
Orbital Period · P
1.11 yr
v(q)
34.4 km/s
v(Q)
24.2 km/s
Diameter · ≈
0.03 km
TJ
5.75
Eccentricity · e
0.1742

Orbit and dynamics

The path is an ellipse reaching 0.882 AU from the Sun at perihelion and 1.255 AU at aphelion, a radial span of 0.373 AU.

Applying Kepler's third law to a = 1.069 AU gives an orbital period of 1.11 yr, or about 404 days.

An eccentricity of 0.174 makes the orbit moderately elongated.

The orbital plane is tilted 7.45° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.4 km/s at perihelion and falls to 24.2 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 = 25.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 21 observations and has a weighted RMS residual of 0.626 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.069 AU
Eccentricity
0.1742
Perihelion
0.882 AU
Aphelion
1.25522 AU
Inclination
7.45°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
254.19°

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 07:45 0.213039 AU
31870185 km
13.85 km/s
2038-Sep-08 03:07 0.125479 AU
18771443 km
9.30 km/s
2039-Jun-15 14:53 0.267092 AU
39956368 km
5.40 km/s
2040-Feb-28 04:42 0.054313 AU
8125040 km
8.82 km/s
2049-Sep-08 21:26 0.062143 AU
9296499 km
5.45 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
25.7

Orbit Quality

RMS
0.62597
Condition
7
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

Explore asteroids, comets and near-Earth objects with JPL orbital data.