SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 RA

2023 RA

2023 RA is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.891 AU and a period of 0.84 yr.

Aten Observations: 22
Orbital Period · P
0.84 yr
v(q)
45.4 km/s
v(Q)
21.9 km/s
Diameter · ≈
0.03 km
TJ
6.61
Eccentricity · e
0.3493

Orbit and dynamics

Between its closest point (0.58 AU) and its farthest (1.203 AU), the heliocentric distance changes by 0.623 AU over every revolution.

One full revolution takes 0.84 yr (307 days), computed from the semi-major axis of 0.891 AU.

An eccentricity of 0.349 makes the orbit moderately elongated.

Its inclination of 0.55° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 45.4 km/s at perihelion and falls to 21.9 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 = 25.14 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 22 individual observations underpins this orbit; the fit leaves an RMS residual of 0.8563 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
0.8915 AU
Eccentricity
0.3493
Perihelion
0.58 AU
Aphelion
1.202901 AU
Inclination
0.55°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
213.89°

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
2028-Aug-27 01:35 0.299460 AU
44798630 km
19.36 km/s
2029-May-05 02:11 0.405046 AU
60594034 km
14.37 km/s
2029-Nov-21 03:08 0.108578 AU
16243081 km
7.24 km/s
2034-Jun-20 15:01 0.306241 AU
45813038 km
7.98 km/s
2034-Sep-29 05:23 0.196439 AU
29386787 km
7.81 km/s
2035-Feb-21 01:58 0.361359 AU
54058541 km
12.19 km/s
2035-Nov-14 17:05 0.481222 AU
71989726 km
25.50 km/s
2039-Aug-18 22:39 0.009486 AU
1419122 km
10.30 km/s
2040-Apr-02 05:46 0.415798 AU
62202560 km
15.55 km/s
2040-Nov-28 08:16 0.142920 AU
21380538 km
14.52 km/s
2044-Aug-30 21:26 0.383167 AU
57320975 km
22.25 km/s
2045-May-18 11:35 0.382136 AU
57166763 km
12.89 km/s
2045-Nov-01 08:17 0.171543 AU
25662487 km
7.61 km/s
2050-Aug-29 10:11 0.090124 AU
13482393 km
7.20 km/s
2051-Mar-16 09:14 0.396663 AU
59339895 km
14.69 km/s
2051-Nov-23 03:53 0.253488 AU
37921260 km
19.47 km/s
2055-Aug-25 08:21 0.179976 AU
26924071 km
17.37 km/s
2056-Apr-28 20:16 0.405152 AU
60609855 km
14.82 km/s
2056-Nov-27 17:00 0.020763 AU
3106130 km
7.70 km/s
2062-Feb-26 16:35 0.358550 AU
53638390 km
12.89 km/s
2062-Nov-17 05:44 0.377581 AU
56485347 km
23.80 km/s
2066-Aug-21 03:13 0.083279 AU
12458290 km
14.00 km/s
2067-Apr-17 13:10 0.415749 AU
62195226 km
15.41 km/s
2067-Dec-02 07:04 0.005310 AU
794308 km
10.34 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
25.14

Orbit Quality

RMS
0.85634
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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