SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 EN2

2019 EN2

2019 EN2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.063 AU it takes 1.10 yr to circle the Sun.

Apollo Observations: 81
Orbital Period · P
1.10 yr
v(q)
39.8 km/s
v(Q)
20.9 km/s
Diameter · ≈
0.01 km
TJ
5.75
Eccentricity · e
0.3108

Orbit and dynamics

The path is an ellipse reaching 0.733 AU from the Sun at perihelion and 1.393 AU at aphelion, a radial span of 0.66 AU.

Applying Kepler's third law to a = 1.063 AU gives an orbital period of 1.10 yr, or about 400 days.

An eccentricity of 0.311 makes the orbit moderately elongated.

The orbital plane is tilted 7.29° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 39.8 km/s at perihelion and falls to 20.9 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 = 27.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 81 observations and has a weighted RMS residual of 0.4992 arcseconds.

Condition code U = 6 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
1.063 AU
Eccentricity
0.3108
Perihelion
0.733 AU
Aphelion
1.39338 AU
Inclination
7.29°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
277.19°

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
2027-Aug-12 00:13 0.419940 AU
62822155 km
22.44 km/s
2028-Sep-17 19:53 0.120345 AU
18003335 km
6.24 km/s
2029-Jun-10 14:22 0.405488 AU
60660094 km
8.40 km/s
2030-Jan-28 16:43 0.196540 AU
29401966 km
7.00 km/s
2030-Mar-27 19:00 0.202278 AU
30260375 km
5.81 km/s
2031-Mar-31 08:58 0.344578 AU
51548071 km
20.65 km/s
2039-Aug-31 11:31 0.028840 AU
4314330 km
11.03 km/s
2040-Jun-30 20:49 0.372043 AU
55656836 km
7.94 km/s
2040-Dec-17 04:33 0.269244 AU
40278369 km
9.51 km/s
2041-Apr-29 22:28 0.323735 AU
48430127 km
7.57 km/s
2042-Mar-21 20:42 0.131641 AU
19693268 km
14.61 km/s
2050-Aug-18 15:42 0.297317 AU
44478003 km
18.35 km/s
2051-Aug-07 07:18 0.273020 AU
40843258 km
6.11 km/s
2051-Oct-29 23:55 0.234055 AU
35014099 km
8.18 km/s
2052-May-28 02:57 0.401621 AU
60081580 km
8.38 km/s
2053-Mar-09 06:19 0.090887 AU
13596519 km
7.18 km/s
2054-Apr-05 22:08 0.486260 AU
72743529 km
24.17 km/s
2062-Sep-02 20:52 0.028042 AU
4194987 km
9.75 km/s
2063-Jun-27 01:47 0.374677 AU
56050913 km
8.09 km/s
2065-Mar-23 07:00 0.092642 AU
13859026 km
15.56 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
27.6

Orbit Quality

RMS
0.49916
Condition
6
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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