SpaceAtlas Space Object Data
NASA JPL SBDB · 2014 FH33

2014 FH33

2014 FH33 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.918 AU it takes 2.66 yr to circle the Sun.

Apollo Observations: 304
Orbital Period · P
2.66 yr
v(q)
49.2 km/s
v(Q)
9.4 km/s
Diameter · ≈
0.47 km
TJ
3.6
Eccentricity · e
0.6789

Orbit and dynamics

Between its closest point (0.616 AU) and its farthest (3.22 AU), the heliocentric distance changes by 2.604 AU over every revolution.

One full revolution takes 2.66 yr (970 days), computed from the semi-major axis of 1.918 AU.

The high eccentricity (0.679) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 8.2° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 49.2 km/s at perihelion and falls to 9.4 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 = 19.39 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.47 km.

Observation record and orbit quality

Astrometry from 304 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4619 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
1.918 AU
Eccentricity
0.6789
Perihelion
0.616 AU
Aphelion
3.22013 AU
Inclination
8.2°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
170.03°

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
2030-May-12 00:34 0.162782 AU
24351910 km
22.50 km/s
2043-Nov-19 01:20 0.198715 AU
29727338 km
24.49 km/s
2051-Nov-08 19:50 0.145330 AU
21741132 km
19.20 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
19.39

Orbit Quality

RMS
0.46188
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.