SpaceAtlas Space Object Data
NASA JPL SBDB · 2006 BO55

2006 BO55

2006 BO55 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.501 AU once every 1.84 yr.

Amor Observations: 59
Orbital Period · P
1.84 yr
v(q)
31.4 km/s
v(Q)
18.8 km/s
Diameter · ≈
0.28 km
TJ
4.41
Eccentricity · e
0.2516

Orbit and dynamics

Between its closest point (1.123 AU) and its farthest (1.879 AU), the heliocentric distance changes by 0.756 AU over every revolution.

One full revolution takes 1.84 yr (672 days), computed from the semi-major axis of 1.501 AU.

An eccentricity of 0.252 makes the orbit moderately elongated.

A steep inclination of 24.44° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 31.4 km/s at perihelion and falls to 18.8 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 = 20.54 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.28 km.

Observation record and orbit quality

Astrometry from 59 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5723 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
1.501 AU
Eccentricity
0.2516
Perihelion
1.123 AU
Aphelion
1.878652 AU
Inclination
24.44°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
337.95°

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
2030-Jan-27 06:36 0.304583 AU
45565028 km
14.05 km/s
2030-Jun-04 22:55 0.424757 AU
63542755 km
13.09 km/s
2041-Jan-23 08:49 0.288610 AU
43175483 km
13.02 km/s
2041-May-30 01:31 0.496918 AU
74337927 km
14.43 km/s
2052-Jan-18 18:44 0.343542 AU
51393119 km
12.63 km/s
2054-Jun-30 08:46 0.494755 AU
74014249 km
12.48 km/s
2063-Jan-11 16:28 0.435173 AU
65101010 km
12.61 km/s
2065-Jun-23 02:33 0.434725 AU
65033948 km
12.29 km/s
2076-Jan-30 09:47 0.477452 AU
71425791 km
17.73 km/s
2076-Jun-15 20:57 0.396464 AU
59310175 km
12.26 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
20.54

Orbit Quality

RMS
0.57225
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.

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