SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 GP3

2019 GP3

2019 GP3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.866 AU it takes 2.55 yr to circle the Sun.

Apollo Observations: 217
Orbital Period · P
2.55 yr
v(q)
35.9 km/s
v(Q)
13.2 km/s
Diameter · ≈
0.25 km
TJ
3.84
Eccentricity · e
0.4607

Orbit and dynamics

Between its closest point (1.006 AU) and its farthest (2.726 AU), the heliocentric distance changes by 1.72 AU over every revolution.

One full revolution takes 2.55 yr (931 days), computed from the semi-major axis of 1.866 AU.

The high eccentricity (0.461) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 8.86° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.9 km/s at perihelion and falls to 13.2 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 20.72 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.25 km.

Observation record and orbit quality

Astrometry from 217 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3557 arcseconds.

Condition code U = 0 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
1.866 AU
Eccentricity
0.4607
Perihelion
1.006 AU
Aphelion
2.725666 AU
Inclination
8.86°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
332.74°

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
2046-Dec-26 04:59 0.157434 AU
23551720 km
6.26 km/s
2069-Nov-21 19:15 0.395149 AU
59113416 km
17.56 km/s
2075-Feb-25 11:42 0.197572 AU
29556322 km
11.50 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
20.72

Orbit Quality

RMS
0.35569
Condition
0
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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