SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 FZ

2019 FZ

2019 FZ is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.877 AU and a period of 0.82 yr.

Aten Observations: 180
Orbital Period · P
0.82 yr
v(q)
66.6 km/s
v(Q)
15.2 km/s
Diameter · ≈
0.19 km
TJ
6.5
Eccentricity · e
0.6287

Orbit and dynamics

The path is an ellipse reaching 0.326 AU from the Sun at perihelion and 1.429 AU at aphelion, a radial span of 1.103 AU.

Applying Kepler's third law to a = 0.877 AU gives an orbital period of 0.82 yr, or about 300 days.

The high eccentricity (0.629) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 27.66° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 66.6 km/s at perihelion and falls to 15.2 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 = 21.36 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.19 km.

Observation record and orbit quality

The current orbit solution is based on 180 observations and has a weighted RMS residual of 0.3412 arcseconds.

Condition code U = 2 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
0.8775 AU
Eccentricity
0.6287
Perihelion
0.326 AU
Aphelion
1.429184 AU
Inclination
27.66°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
190.9°

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
2033-Apr-01 14:11 0.068990 AU
10320807 km
24.62 km/s
2042-Apr-05 16:02 0.158399 AU
23696213 km
19.20 km/s
2056-Apr-04 01:55 0.037159 AU
5558927 km
21.90 km/s
2070-Apr-02 13:27 0.052249 AU
7816306 km
24.14 km/s
2079-Apr-05 17:55 0.193983 AU
29019449 km
18.60 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
21.36

Orbit Quality

RMS
0.34125
Condition
2
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.