SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 RM49

2026 RM49

2026 RM49 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.014 AU it takes 1.02 yr to circle the Sun.

Apollo Observations: 15
Orbital Period · P
1.02 yr
v(q)
35.4 km/s
v(Q)
24.7 km/s
Diameter · ≈
0.02 km
TJ
5.99
Eccentricity · e
0.1772

Orbit and dynamics

Between its closest point (0.835 AU) and its farthest (1.194 AU), the heliocentric distance changes by 0.359 AU over every revolution.

One full revolution takes 1.02 yr (373 days), computed from the semi-major axis of 1.014 AU.

An eccentricity of 0.177 makes the orbit moderately elongated.

The orbital plane is tilted 10.71° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.4 km/s at perihelion and falls to 24.7 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 = 25.81 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 15 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5527 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
1.014 AU
Eccentricity
0.1772
Perihelion
0.835 AU
Aphelion
1.193681 AU
Inclination
10.71°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
11.96°

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
2027-Aug-29 09:52 0.100466 AU
15029465 km
9.86 km/s
2073-Aug-28 09:11 0.043594 AU
6521502 km
8.60 km/s
2074-Aug-31 04:51 0.053410 AU
7989963 km
11.94 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
25.81

Orbit Quality

RMS
0.5527
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.

Keep exploring

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