SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 EG

2019 EG

2019 EG belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.28 AU it takes 1.45 yr to circle the Sun.

Apollo Observations: 113
Orbital Period · P
1.45 yr
v(q)
40.2 km/s
v(Q)
17.2 km/s
Diameter · ≈
0.14 km
TJ
4.82
Eccentricity · e
0.3996

Orbit and dynamics

The path is an ellipse reaching 0.768 AU from the Sun at perihelion and 1.791 AU at aphelion, a radial span of 1.023 AU.

Applying Kepler's third law to a = 1.28 AU gives an orbital period of 1.45 yr, or about 529 days.

An eccentricity of 0.4 makes the orbit moderately elongated.

A steep inclination of 33.86° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 40.2 km/s at perihelion and falls to 17.2 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 = 22.05 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.14 km.

Observation record and orbit quality

The current orbit solution is based on 113 observations and has a weighted RMS residual of 0.3905 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
1.28 AU
Eccentricity
0.3996
Perihelion
0.768 AU
Aphelion
1.791488 AU
Inclination
33.86°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
50.41°

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
2032-Mar-06 17:24 0.135710 AU
20301878 km
22.95 km/s
2034-Sep-15 19:07 0.291780 AU
43649630 km
17.08 km/s
2037-Aug-29 11:18 0.347332 AU
51960082 km
27.08 km/s
2045-Mar-15 02:44 0.335263 AU
50154686 km
27.37 km/s
2047-Sep-13 12:29 0.481300 AU
72001427 km
16.54 km/s
2048-Feb-23 06:50 0.306389 AU
45835129 km
17.36 km/s
2050-Sep-06 07:34 0.158293 AU
23680367 km
22.71 km/s
2061-Feb-26 21:47 0.118445 AU
17719153 km
19.06 km/s
2063-Sep-12 05:03 0.092252 AU
13800777 km
19.54 km/s
2074-Mar-05 10:05 0.088685 AU
13267080 km
22.00 km/s
2076-Sep-15 01:41 0.246554 AU
36884020 km
17.40 km/s
2079-Aug-28 05:33 0.392634 AU
58737165 km
28.16 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
22.05

Orbit Quality

RMS
0.3905
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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