SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 FE1

2019 FE1

2019 FE1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.398 AU it takes 1.65 yr to circle the Sun.

Apollo Observations: 68
Orbital Period · P
1.65 yr
v(q)
47.5 km/s
v(Q)
13.4 km/s
Diameter · ≈
0.32 km
TJ
4.42
Eccentricity · e
0.5609

Orbit and dynamics

The path is an ellipse reaching 0.614 AU from the Sun at perihelion and 2.182 AU at aphelion, a radial span of 1.568 AU.

Applying Kepler's third law to a = 1.398 AU gives an orbital period of 1.65 yr, or about 604 days.

The high eccentricity (0.561) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 36.04° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 47.5 km/s at perihelion and falls to 13.4 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 = 20.23 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.32 km.

Observation record and orbit quality

The current orbit solution is based on 68 observations and has a weighted RMS residual of 0.5385 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
1.398 AU
Eccentricity
0.5609
Perihelion
0.614 AU
Aphelion
2.182138 AU
Inclination
36.04°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
49.69°

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
2029-Apr-07 07:08 0.454454 AU
67985413 km
19.45 km/s
2034-Apr-08 06:51 0.382016 AU
57148799 km
22.16 km/s
2039-Apr-04 07:59 0.422722 AU
63238358 km
26.95 km/s
2042-Oct-29 03:00 0.445681 AU
66672863 km
31.75 km/s
2047-Oct-12 04:14 0.331683 AU
49619038 km
28.47 km/s
2052-Sep-22 08:27 0.314789 AU
47091780 km
26.99 km/s
2057-Sep-01 16:45 0.388857 AU
58172175 km
26.87 km/s
2062-Aug-10 02:30 0.493858 AU
73880106 km
26.83 km/s
2072-Apr-07 19:48 0.433104 AU
64791363 km
19.86 km/s
2077-Apr-07 19:07 0.383499 AU
57370600 km
22.91 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
20.23

Orbit Quality

RMS
0.5385
Condition
1
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.

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