SpaceAtlas Space Object Data
NASA JPL SBDB · 2012 DT32

2012 DT32

2012 DT32 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.349 AU it takes 1.57 yr to circle the Sun.

Apollo Observations: 109
Orbital Period · P
1.57 yr
v(q)
45.4 km/s
v(Q)
14.5 km/s
Diameter · ≈
0.2 km
TJ
4.72
Eccentricity · e
0.5159

Orbit and dynamics

Between its closest point (0.653 AU) and its farthest (2.045 AU), the heliocentric distance changes by 1.392 AU over every revolution.

One full revolution takes 1.57 yr (572 days), computed from the semi-major axis of 1.349 AU.

The high eccentricity (0.516) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 6.44° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 45.4 km/s at perihelion and falls to 14.5 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 = 21.21 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.2 km.

Observation record and orbit quality

Astrometry from 109 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5051 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
1.349 AU
Eccentricity
0.5159
Perihelion
0.653 AU
Aphelion
2.044949 AU
Inclination
6.44°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
99.95°

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-Jul-20 08:54 0.264578 AU
39580337 km
22.75 km/s
2033-Oct-25 02:03 0.344289 AU
51504974 km
15.39 km/s
2037-Feb-07 02:04 0.148898 AU
22274827 km
19.09 km/s
2041-Jul-08 16:42 0.497037 AU
74355611 km
29.84 km/s
2044-Sep-16 18:43 0.288154 AU
43107235 km
11.58 km/s
2048-Jan-20 10:05 0.151937 AU
22729478 km
11.79 km/s
2055-Aug-05 11:54 0.097691 AU
14614294 km
13.82 km/s
2058-Dec-04 05:51 0.307831 AU
46050843 km
14.18 km/s
2062-Feb-22 03:01 0.425273 AU
63620008 km
27.96 km/s
2066-Jul-22 12:30 0.227858 AU
34087076 km
21.58 km/s
2069-Oct-29 09:17 0.345092 AU
51625003 km
15.57 km/s
2073-Feb-08 11:02 0.167872 AU
25113315 km
19.75 km/s
2077-Jul-09 12:37 0.485528 AU
72633916 km
29.49 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
21.21

Orbit Quality

RMS
0.50512
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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