SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 FH

2019 FH

2019 FH belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.528 AU it takes 1.89 yr to circle the Sun.

Apollo Observations: 223
Orbital Period · P
1.89 yr
v(q)
67.5 km/s
v(Q)
8.6 km/s
Diameter · ≈
0.33 km
TJ
4.09
Eccentricity · e
0.7742

Orbit and dynamics

The path is an ellipse reaching 0.345 AU from the Sun at perihelion and 2.711 AU at aphelion, a radial span of 2.366 AU.

Applying Kepler's third law to a = 1.528 AU gives an orbital period of 1.89 yr, or about 690 days.

The high eccentricity (0.774) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 3.86° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 67.5 km/s at perihelion and falls to 8.6 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 = 20.19 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.33 km.

Observation record and orbit quality

The current orbit solution is based on 223 observations and has a weighted RMS residual of 0.4264 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
1.528 AU
Eccentricity
0.7742
Perihelion
0.345 AU
Aphelion
2.710978 AU
Inclination
3.86°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
324.79°

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
2036-Mar-08 17:50 0.071619 AU
10714012 km
26.80 km/s
2043-Jul-01 18:32 0.173029 AU
25884796 km
31.12 km/s
2053-Mar-08 04:45 0.067271 AU
10063568 km
26.14 km/s
2060-Jun-30 03:48 0.194325 AU
29070650 km
31.78 km/s
2070-Mar-07 15:53 0.069632 AU
10416858 km
25.49 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
20.19

Orbit Quality

RMS
0.42638
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

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