SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 HR

2022 HR

2022 HR is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.33 AU once every 1.53 yr.

Amor Observations: 61
Orbital Period · P
1.53 yr
v(q)
28.4 km/s
v(Q)
23.5 km/s
Diameter · ≈
0.18 km
TJ
4.84
Eccentricity · e
0.0938

Orbit and dynamics

Between its closest point (1.206 AU) and its farthest (1.455 AU), the heliocentric distance changes by 0.249 AU over every revolution.

One full revolution takes 1.53 yr (560 days), computed from the semi-major axis of 1.33 AU.

With e = 0.094, the orbit is close to circular.

A steep inclination of 22.8° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 28.4 km/s at perihelion and falls to 23.5 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 21.44 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.18 km.

Observation record and orbit quality

Astrometry from 61 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5575 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
1.33 AU
Eccentricity
0.0938
Perihelion
1.206 AU
Aphelion
1.454754 AU
Inclination
22.8°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
52.11°

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-Nov-10 21:46 0.453027 AU
67771930 km
12.44 km/s
2030-Oct-22 13:58 0.215486 AU
32236198 km
11.64 km/s
2033-Oct-06 18:06 0.376820 AU
56371458 km
12.41 km/s
2039-May-09 07:48 0.484420 AU
72468210 km
11.66 km/s
2042-Apr-18 05:14 0.450527 AU
67397940 km
12.13 km/s
2045-Mar-27 23:28 0.480806 AU
71927564 km
11.71 km/s
2050-Nov-03 09:21 0.369449 AU
55268831 km
12.32 km/s
2053-Oct-18 12:10 0.217814 AU
32584439 km
11.66 km/s
2056-Sep-29 13:45 0.459180 AU
68692307 km
12.56 km/s
2062-May-03 01:01 0.469395 AU
70220482 km
11.89 km/s
2065-Apr-12 10:49 0.452478 AU
67689741 km
12.10 km/s
2068-Mar-21 01:59 0.498263 AU
74539087 km
11.36 km/s
2073-Oct-29 00:54 0.293579 AU
43918747 km
12.00 km/s
2076-Oct-14 08:56 0.261870 AU
39175193 km
11.87 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
21.44

Orbit Quality

RMS
0.55749
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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