SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 BU93

2017 BU93

2017 BU93 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.981 AU and a period of 0.97 yr.

Aten Observations: 23
Orbital Period · P
0.97 yr
v(q)
46.1 km/s
v(Q)
19.6 km/s
Diameter · ≈
0.08 km
TJ
6.04
Eccentricity · e
0.4029

Orbit and dynamics

Between its closest point (0.586 AU) and its farthest (1.377 AU), the heliocentric distance changes by 0.791 AU over every revolution.

One full revolution takes 0.97 yr (355 days), computed from the semi-major axis of 0.981 AU.

The high eccentricity (0.403) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 22.4° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 46.1 km/s at perihelion and falls to 19.6 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 = 23.17 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

Astrometry from 23 individual observations underpins this orbit; the fit leaves an RMS residual of 0.7317 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
0.9812 AU
Eccentricity
0.4029
Perihelion
0.586 AU
Aphelion
1.376525 AU
Inclination
22.4°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
324.17°

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
2048-Feb-02 16:10 0.375407 AU
56160051 km
27.43 km/s
2049-Jan-27 10:27 0.240416 AU
35965723 km
22.60 km/s
2050-Jan-24 02:44 0.174451 AU
26097484 km
18.21 km/s
2051-Jan-24 22:44 0.166557 AU
24916513 km
14.93 km/s
2052-Jan-31 17:15 0.209902 AU
31400912 km
13.60 km/s
2053-Feb-09 19:03 0.274130 AU
41009276 km
13.49 km/s
2054-Feb-20 15:09 0.344627 AU
51555405 km
13.60 km/s
2055-Mar-03 22:04 0.406909 AU
60872764 km
13.58 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
23.17

Orbit Quality

RMS
0.73165
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.

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