SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 OR1

2023 OR1

2023 OR1 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.911 AU and a period of 0.87 yr.

Aten Observations: 48
Orbital Period · P
0.87 yr
v(q)
46.8 km/s
v(Q)
20.8 km/s
Diameter · ≈
0.02 km
TJ
6.48
Eccentricity · e
0.384

Orbit and dynamics

The path is an ellipse reaching 0.561 AU from the Sun at perihelion and 1.26 AU at aphelion, a radial span of 0.699 AU.

Applying Kepler's third law to a = 0.911 AU gives an orbital period of 0.87 yr, or about 317 days.

An eccentricity of 0.384 makes the orbit moderately elongated.

The orbital plane is tilted 7.01° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 46.8 km/s at perihelion and falls to 20.8 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 = 26.45 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

The current orbit solution is based on 48 observations and has a weighted RMS residual of 0.3116 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
0.9106 AU
Eccentricity
0.384
Perihelion
0.561 AU
Aphelion
1.26027 AU
Inclination
7.01°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
22.41°

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
2028-Apr-17 12:35 0.352642 AU
52754555 km
21.20 km/s
2029-Jan-18 21:32 0.367118 AU
54920129 km
13.15 km/s
2029-Jun-01 22:33 0.268703 AU
40197414 km
8.72 km/s
2029-Oct-18 05:20 0.387839 AU
58019819 km
12.81 km/s
2030-Jul-17 13:56 0.286111 AU
42801547 km
20.03 km/s
2035-Apr-06 08:01 0.121563 AU
18185640 km
12.43 km/s
2035-Dec-16 17:40 0.423295 AU
63324021 km
16.56 km/s
2036-Jul-12 03:30 0.169602 AU
25372150 km
8.03 km/s
2042-Apr-25 03:51 0.215474 AU
32234519 km
7.65 km/s
2042-Nov-17 22:46 0.427523 AU
63956595 km
16.23 km/s
2043-Jul-26 18:45 0.038732 AU
5794296 km
12.62 km/s
2048-Apr-15 15:52 0.312152 AU
46697229 km
19.80 km/s
2049-Jan-13 01:40 0.380527 AU
56925967 km
14.02 km/s
2049-Jun-08 13:56 0.265222 AU
39676707 km
8.73 km/s
2049-Oct-11 13:04 0.376227 AU
56282775 km
11.72 km/s
2050-Jul-15 17:04 0.345988 AU
51759058 km
21.57 km/s
2055-Apr-04 13:14 0.115673 AU
17304467 km
10.12 km/s
2055-Dec-07 19:45 0.428183 AU
64055241 km
16.82 km/s
2056-Jul-23 14:14 0.099314 AU
14857164 km
8.49 km/s
2061-Apr-23 05:02 0.439905 AU
65808877 km
24.70 km/s
2062-Feb-04 21:03 0.314847 AU
47100499 km
10.64 km/s
2062-May-17 21:08 0.257042 AU
38452893 km
8.47 km/s
2062-Nov-01 23:06 0.412143 AU
61655691 km
14.74 km/s
2063-Jul-22 08:19 0.167622 AU
25075829 km
16.79 km/s
2068-Apr-08 16:28 0.152581 AU
22825747 km
14.61 km/s
2068-Dec-23 13:45 0.412208 AU
61665393 km
16.12 km/s
2069-Jul-03 03:27 0.204246 AU
30554749 km
8.23 km/s
2075-Apr-25 22:11 0.210297 AU
31459950 km
7.65 km/s
2075-Nov-17 12:48 0.428827 AU
64151663 km
16.21 km/s
2076-Jul-25 17:12 0.056618 AU
8469927 km
13.06 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
26.45

Orbit Quality

RMS
0.31163
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.

Keep exploring

Explore asteroids, comets and near-Earth objects with JPL orbital data.