SpaceAtlas Space Object Data
NASA JPL SBDB · 537395

537395

537395 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.26 AU once every 1.41 yr.

Amor Observations: 214
Orbital Period · P
1.41 yr
v(q)
31.9 km/s
v(Q)
22.1 km/s
Diameter · ≈
0.28 km
TJ
5.03
Eccentricity · e
0.1817

Orbit and dynamics

Between its closest point (1.031 AU) and its farthest (1.489 AU), the heliocentric distance changes by 0.458 AU over every revolution.

One full revolution takes 1.41 yr (517 days), computed from the semi-major axis of 1.26 AU.

An eccentricity of 0.182 makes the orbit moderately elongated.

A steep inclination of 21.29° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 31.9 km/s at perihelion and falls to 22.1 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 = 20.48 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.28 km.

Observation record and orbit quality

Astrometry from 214 individual observations underpins this orbit; the fit leaves an RMS residual of 0.374 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
1.26 AU
Eccentricity
0.1817
Perihelion
1.031 AU
Aphelion
1.488942 AU
Inclination
21.29°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
238.12°

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-Jul-19 08:25 0.307384 AU
45984012 km
14.93 km/s
2032-Dec-09 13:02 0.482064 AU
72115747 km
8.90 km/s
2039-Aug-12 10:18 0.112171 AU
16780534 km
11.87 km/s
2043-Jan-22 18:45 0.492095 AU
73616411 km
12.34 km/s
2049-Dec-28 15:48 0.484597 AU
72494722 km
10.94 km/s
2056-Aug-01 08:20 0.078049 AU
11675995 km
11.88 km/s
2060-Feb-01 22:24 0.497968 AU
74494879 km
12.51 km/s
2063-Aug-24 16:40 0.333545 AU
49897662 km
14.77 km/s
2067-Jan-12 03:49 0.485806 AU
72675488 km
11.91 km/s
2073-Jul-18 09:01 0.331367 AU
49571801 km
15.40 km/s
2073-Dec-13 06:28 0.481663 AU
72055709 km
9.31 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
20.48

Orbit Quality

RMS
0.374
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.

Keep exploring

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