SpaceAtlas Space Object Data
NASA JPL SBDB · 2011 AM37

2011 AM37

2011 AM37 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.103 AU it takes 1.16 yr to circle the Sun.

Apollo Observations: 19
Orbital Period · P
1.16 yr
v(q)
32.9 km/s
v(Q)
24.4 km/s
Diameter · ≈
0 km
TJ
5.63
Eccentricity · e
0.1483

Orbit and dynamics

Between its closest point (0.939 AU) and its farthest (1.267 AU), the heliocentric distance changes by 0.328 AU over every revolution.

One full revolution takes 1.16 yr (423 days), computed from the semi-major axis of 1.103 AU.

An eccentricity of 0.148 makes the orbit moderately elongated.

Its inclination of 2.63° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 32.9 km/s at perihelion and falls to 24.4 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 = 29.9 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0 km.

Observation record and orbit quality

Astrometry from 19 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5615 arcseconds.

Condition code U = 6 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
1.103 AU
Eccentricity
0.1483
Perihelion
0.939 AU
Aphelion
1.266575 AU
Inclination
2.63°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
161.81°

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
2032-Sep-11 17:05 0.043241 AU
6468835 km
6.13 km/s
2039-Aug-23 00:30 0.318454 AU
47639984 km
17.32 km/s
2041-Feb-03 02:51 0.143486 AU
21465208 km
13.15 km/s
2054-Aug-30 07:37 0.232894 AU
34840468 km
12.42 km/s
2056-Feb-11 06:40 0.350892 AU
52492626 km
17.98 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
29.9

Orbit Quality

RMS
0.56153
Condition
6
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

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