SpaceAtlas Space Object Data
NASA JPL SBDB · 2014 EA49

2014 EA49

2014 EA49 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.011 AU it takes 2.85 yr to circle the Sun.

Apollo Observations: 81
Orbital Period · P
2.85 yr
v(q)
80.4 km/s
v(Q)
5.5 km/s
Diameter · ≈
0.38 km
TJ
3.19
Eccentricity · e
0.8724

Orbit and dynamics

Between its closest point (0.257 AU) and its farthest (3.765 AU), the heliocentric distance changes by 3.508 AU over every revolution.

One full revolution takes 2.85 yr (1,042 days), computed from the semi-major axis of 2.011 AU.

The high eccentricity (0.872) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 10.64° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 80.4 km/s at perihelion and falls to 5.5 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 = 19.86 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.38 km.

Observation record and orbit quality

Astrometry from 81 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4506 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
2.011 AU
Eccentricity
0.8724
Perihelion
0.257 AU
Aphelion
3.765396 AU
Inclination
10.64°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
129.78°

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
2031-Mar-19 13:53 0.394513 AU
59018348 km
42.85 km/s
2042-Jun-05 09:13 0.315721 AU
47231133 km
39.91 km/s
2051-Mar-04 21:51 0.148790 AU
22258723 km
32.70 km/s
2059-Jun-24 12:57 0.209169 AU
31291179 km
27.61 km/s
2068-Mar-20 19:49 0.415751 AU
62195404 km
43.74 km/s
2079-May-30 14:44 0.434187 AU
64953443 km
44.09 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
19.86

Orbit Quality

RMS
0.45065
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.