SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 BK92

2017 BK92

2017 BK92 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.357 AU it takes 1.58 yr to circle the Sun.

Apollo Observations: 92
Orbital Period · P
1.58 yr
v(q)
51.7 km/s
v(Q)
12.7 km/s
Diameter · ≈
0.25 km
TJ
4.63
Eccentricity · e
0.6064

Orbit and dynamics

Between its closest point (0.534 AU) and its farthest (2.18 AU), the heliocentric distance changes by 1.646 AU over every revolution.

One full revolution takes 1.58 yr (577 days), computed from the semi-major axis of 1.357 AU.

The high eccentricity (0.606) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 12.74° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 51.7 km/s at perihelion and falls to 12.7 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 = 20.75 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.25 km.

Observation record and orbit quality

Astrometry from 92 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5223 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
1.357 AU
Eccentricity
0.6064
Perihelion
0.534 AU
Aphelion
2.179885 AU
Inclination
12.74°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
272.34°

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-Sep-15 20:55 0.132854 AU
19874659 km
17.33 km/s
2036-Mar-01 15:24 0.124588 AU
18638155 km
17.19 km/s
2055-Feb-26 15:07 0.052593 AU
7867795 km
19.37 km/s
2074-Feb-28 09:41 0.086520 AU
12943214 km
18.27 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
20.75

Orbit Quality

RMS
0.52226
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.

Keep exploring

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