SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 RT19

2016 RT19

2016 RT19 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.325 AU once every 1.53 yr.

Amor Observations: 49
Orbital Period · P
1.53 yr
v(q)
28.7 km/s
v(Q)
23.3 km/s
Diameter · ≈
0.15 km
TJ
4.81
Eccentricity · e
0.1049

Orbit and dynamics

The path is an ellipse reaching 1.186 AU from the Sun at perihelion and 1.464 AU at aphelion, a radial span of 0.278 AU.

Applying Kepler's third law to a = 1.325 AU gives an orbital period of 1.53 yr, or about 557 days.

An eccentricity of 0.105 makes the orbit moderately elongated.

A steep inclination of 28.02° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 28.7 km/s at perihelion and falls to 23.3 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 = 21.83 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.15 km.

Observation record and orbit quality

The current orbit solution is based on 49 observations and has a weighted RMS residual of 0.425 arcseconds.

Condition code U = 1 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
1.325 AU
Eccentricity
0.1049
Perihelion
1.186 AU
Aphelion
1.463993 AU
Inclination
28.02°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
124.61°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
21.83

Orbit Quality

RMS
0.42499
Condition
1
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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