SpaceAtlas Space Object Data
NASA JPL SBDB · 2001 BO60

2001 BO60

2001 BO60 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.616 AU once every 2.05 yr.

Amor Observations: 50
Orbital Period · P
2.05 yr
v(q)
30.7 km/s
v(Q)
17.9 km/s
Diameter · ≈
0.56 km
TJ
4.09
Eccentricity · e
0.2639

Orbit and dynamics

Between its closest point (1.189 AU) and its farthest (2.042 AU), the heliocentric distance changes by 0.853 AU over every revolution.

One full revolution takes 2.05 yr (750 days), computed from the semi-major axis of 1.616 AU.

An eccentricity of 0.264 makes the orbit moderately elongated.

A steep inclination of 35.94° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 30.7 km/s at perihelion and falls to 17.9 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 19.01 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.56 km.

Observation record and orbit quality

Astrometry from 50 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4922 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
1.616 AU
Eccentricity
0.2639
Perihelion
1.189 AU
Aphelion
2.042462 AU
Inclination
35.94°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
80.07°

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-30 16:41 0.462238 AU
69149836 km
17.56 km/s
2036-Jun-26 04:48 0.486313 AU
72751431 km
18.88 km/s
2038-Jan-25 22:42 0.438795 AU
65642787 km
18.73 km/s
2040-Jan-21 16:22 0.475659 AU
71157586 km
17.90 km/s
2073-Jun-29 06:43 0.455159 AU
68090759 km
17.79 km/s
2077-Jan-24 17:14 0.434567 AU
65010290 km
18.41 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
19.01

Orbit Quality

RMS
0.4922
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.

Keep exploring

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