SpaceAtlas Space Object Data
NASA JPL SBDB · 2009 DB43

2009 DB43

2009 DB43 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.101 AU it takes 1.16 yr to circle the Sun.

Apollo Observations: 28
Orbital Period · P
1.16 yr
v(q)
33.8 km/s
v(Q)
23.9 km/s
Diameter · ≈
0.02 km
TJ
5.63
Eccentricity · e
0.1719

Orbit and dynamics

Between its closest point (0.912 AU) and its farthest (1.29 AU), the heliocentric distance changes by 0.378 AU over every revolution.

One full revolution takes 1.16 yr (422 days), computed from the semi-major axis of 1.101 AU.

An eccentricity of 0.172 makes the orbit moderately elongated.

Its inclination of 0.93° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 33.8 km/s at perihelion and falls to 23.9 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 = 26.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 28 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6265 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
1.101 AU
Eccentricity
0.1719
Perihelion
0.912 AU
Aphelion
1.290262 AU
Inclination
0.93°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
36.69°

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-Apr-04 08:36 0.163905 AU
24519870 km
3.44 km/s
2037-Sep-19 10:09 0.276914 AU
41425784 km
12.74 km/s
2038-Jun-02 19:48 0.273418 AU
40902684 km
5.47 km/s
2039-Mar-11 11:53 0.404600 AU
60527361 km
17.00 km/s
2046-Feb-18 16:44 0.016047 AU
2400648 km
5.90 km/s
2052-Oct-27 20:55 0.035560 AU
5319709 km
3.15 km/s
2053-Apr-06 17:58 0.185669 AU
27775643 km
3.65 km/s
2059-Sep-28 02:03 0.077589 AU
11607118 km
8.57 km/s
2060-May-11 14:18 0.243990 AU
36500420 km
5.11 km/s
2066-Sep-15 17:06 0.268531 AU
40171618 km
15.24 km/s
2068-Mar-07 03:40 0.261280 AU
39086943 km
15.30 km/s
2075-Feb-23 20:33 0.015171 AU
2269481 km
8.42 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
26.5

Orbit Quality

RMS
0.62649
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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