SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 RM1

2019 RM1

2019 RM1 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.147 AU once every 1.23 yr.

Amor Observations: 20
Orbital Period · P
1.23 yr
v(q)
30.9 km/s
v(Q)
25.1 km/s
Diameter · ≈
0.01 km
TJ
5.44
Eccentricity · e
0.1038

Orbit and dynamics

The path is an ellipse reaching 1.028 AU from the Sun at perihelion and 1.266 AU at aphelion, a radial span of 0.238 AU.

Applying Kepler's third law to a = 1.147 AU gives an orbital period of 1.23 yr, or about 449 days.

An eccentricity of 0.104 makes the orbit moderately elongated.

The orbital plane is tilted 14.19° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 30.9 km/s at perihelion and falls to 25.1 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 = 27.8 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 20 observations and has a weighted RMS residual of 0.5164 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
1.147 AU
Eccentricity
0.1038
Perihelion
1.028 AU
Aphelion
1.266059 AU
Inclination
14.19°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
173.21°

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-Sep-21 10:59 0.233910 AU
34992410 km
12.41 km/s
2035-Aug-26 11:03 0.054317 AU
8125654 km
9.60 km/s
2057-Sep-27 12:05 0.280141 AU
41908445 km
16.11 km/s
2068-Feb-26 20:15 0.263245 AU
39380927 km
8.36 km/s
2073-Sep-15 17:34 0.084691 AU
12669537 km
9.76 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
27.8

Orbit Quality

RMS
0.51644
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

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