SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 EB3

2017 EB3

2017 EB3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.039 AU it takes 1.06 yr to circle the Sun.

Apollo Observations: 63
Orbital Period · P
1.06 yr
v(q)
34.1 km/s
v(Q)
25.1 km/s
Diameter · ≈
0.04 km
TJ
5.89
Eccentricity · e
0.1525

Orbit and dynamics

Between its closest point (0.881 AU) and its farthest (1.197 AU), the heliocentric distance changes by 0.316 AU over every revolution.

One full revolution takes 1.06 yr (387 days), computed from the semi-major axis of 1.039 AU.

An eccentricity of 0.152 makes the orbit moderately elongated.

Its inclination of 2.84° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 34.1 km/s at perihelion and falls to 25.1 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 = 25 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 63 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6238 arcseconds.

Condition code U = 2 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
1.039 AU
Eccentricity
0.1525
Perihelion
0.881 AU
Aphelion
1.197447 AU
Inclination
2.84°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
174.71°

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
2034-Mar-18 22:51 0.254979 AU
38144283 km
12.69 km/s
2035-May-07 10:53 0.104650 AU
15655432 km
3.84 km/s
2035-Dec-18 00:11 0.218285 AU
32654954 km
5.22 km/s
2036-Sep-22 01:49 0.036330 AU
5434916 km
4.36 km/s
2037-Oct-07 11:44 0.334457 AU
50034102 km
15.00 km/s
2052-Mar-16 03:58 0.288535 AU
43164241 km
13.69 km/s
2053-Apr-15 04:53 0.075112 AU
11236565 km
3.45 km/s
2053-Dec-24 09:21 0.219613 AU
32853698 km
5.23 km/s
2054-Sep-18 01:26 0.079505 AU
11893733 km
3.03 km/s
2055-Oct-05 15:58 0.287909 AU
43070619 km
13.61 km/s
2070-Mar-14 14:22 0.328067 AU
49078170 km
14.87 km/s
2071-Apr-03 21:25 0.039289 AU
5877583 km
4.16 km/s
2071-Dec-29 22:14 0.220133 AU
32931404 km
5.23 km/s
2072-Aug-21 15:44 0.104037 AU
15563728 km
3.30 km/s
2072-Oct-02 18:39 0.107517 AU
16084294 km
2.85 km/s
2073-Oct-03 08:50 0.268460 AU
40160989 km
13.02 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
25.0

Orbit Quality

RMS
0.62383
Condition
2
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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