SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 JM1

2026 JM1

2026 JM1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.151 AU it takes 1.23 yr to circle the Sun.

Apollo Observations: 103
Orbital Period · P
1.23 yr
v(q)
34.2 km/s
v(Q)
22.5 km/s
Diameter · ≈
0.01 km
TJ
5.44
Eccentricity · e
0.2063

Orbit and dynamics

Between its closest point (0.914 AU) and its farthest (1.388 AU), the heliocentric distance changes by 0.474 AU over every revolution.

One full revolution takes 1.23 yr (451 days), computed from the semi-major axis of 1.151 AU.

An eccentricity of 0.206 makes the orbit moderately elongated.

The orbital plane is tilted 5.74° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.2 km/s at perihelion and falls to 22.5 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 = 27.59 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 103 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3813 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
1.151 AU
Eccentricity
0.2063
Perihelion
0.914 AU
Aphelion
1.388451 AU
Inclination
5.74°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
70.31°

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-Dec-27 07:22 0.104190 AU
15586549 km
7.64 km/s
2063-May-17 14:33 0.116190 AU
17381823 km
9.12 km/s
2068-Jan-01 14:37 0.085250 AU
12753227 km
4.86 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
27.59

Orbit Quality

RMS
0.3813
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.

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