SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 PM2

2019 PM2

2019 PM2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.973 AU and a period of 0.96 yr.

Aten Observations: 93
Orbital Period · P
0.96 yr
v(q)
53.6 km/s
v(Q)
17 km/s
Diameter · ≈
0.16 km
TJ
6.05
Eccentricity · e
0.5175

Orbit and dynamics

The path is an ellipse reaching 0.469 AU from the Sun at perihelion and 1.476 AU at aphelion, a radial span of 1.007 AU.

Applying Kepler's third law to a = 0.973 AU gives an orbital period of 0.96 yr, or about 351 days.

The high eccentricity (0.517) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 17.99° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 53.6 km/s at perihelion and falls to 17 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 = 21.79 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.16 km.

Observation record and orbit quality

The current orbit solution is based on 93 observations and has a weighted RMS residual of 0.6785 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
0.9729 AU
Eccentricity
0.5175
Perihelion
0.469 AU
Aphelion
1.476376 AU
Inclination
17.99°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
155.58°

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
21.79

Orbit Quality

RMS
0.67851
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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