SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 CQ

2017 CQ

2017 CQ belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.465 AU it takes 1.77 yr to circle the Sun.

Apollo Observations: 46
Orbital Period · P
1.77 yr
v(q)
51 km/s
v(Q)
11.9 km/s
Diameter · ≈
0.23 km
TJ
4.37
Eccentricity · e
0.6228

Orbit and dynamics

The path is an ellipse reaching 0.553 AU from the Sun at perihelion and 2.377 AU at aphelion, a radial span of 1.824 AU.

Applying Kepler's third law to a = 1.465 AU gives an orbital period of 1.77 yr, or about 648 days.

The high eccentricity (0.623) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 9.98° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 51 km/s at perihelion and falls to 11.9 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 = 20.98 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.23 km.

Observation record and orbit quality

The current orbit solution is based on 46 observations and has a weighted RMS residual of 0.7511 arcseconds.

Condition code U = 1 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
1.465 AU
Eccentricity
0.6228
Perihelion
0.553 AU
Aphelion
2.377402 AU
Inclination
9.98°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
143.49°

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
2034-Jun-15 16:05 0.186283 AU
27867590 km
24.12 km/s
2056-Jan-04 10:20 0.162851 AU
24362138 km
17.39 km/s
2073-Jun-21 13:57 0.114763 AU
17168348 km
20.50 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
20.98

Orbit Quality

RMS
0.75115
Condition
1
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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