SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 UD1

2022 UD1

2022 UD1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.259 AU it takes 1.41 yr to circle the Sun.

Apollo Observations: 24
Orbital Period · P
1.41 yr
v(q)
32.6 km/s
v(Q)
21.6 km/s
Diameter · ≈
0.01 km
TJ
5.09
Eccentricity · e
0.2028

Orbit and dynamics

Between its closest point (1.004 AU) and its farthest (1.514 AU), the heliocentric distance changes by 0.51 AU over every revolution.

One full revolution takes 1.41 yr (516 days), computed from the semi-major axis of 1.259 AU.

An eccentricity of 0.203 makes the orbit moderately elongated.

The orbital plane is tilted 7.8° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32.6 km/s at perihelion and falls to 21.6 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 28.17 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 24 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5659 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.259 AU
Eccentricity
0.2028
Perihelion
1.004 AU
Aphelion
1.514325 AU
Inclination
7.8°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
199.3°

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
2029-Jul-06 20:48 0.361258 AU
54043462 km
5.00 km/s
2029-Dec-09 14:29 0.351274 AU
52549840 km
14.20 km/s
2033-Mar-14 07:20 0.435996 AU
65224113 km
7.68 km/s
2036-May-28 12:34 0.464034 AU
69418446 km
7.71 km/s
2039-Sep-14 15:12 0.189168 AU
28299123 km
11.20 km/s
2050-Apr-03 14:49 0.478531 AU
71587272 km
8.49 km/s
2053-Jun-19 19:45 0.404959 AU
60581000 km
6.36 km/s
2057-Feb-27 21:54 0.388201 AU
58074042 km
6.80 km/s
2063-Oct-07 07:31 0.048639 AU
7276263 km
5.86 km/s
2070-Dec-01 18:50 0.231978 AU
34703482 km
10.82 km/s
2074-Mar-24 15:05 0.458107 AU
68531784 km
8.15 km/s
2077-Jun-09 21:24 0.426155 AU
63751838 km
7.01 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
28.17

Orbit Quality

RMS
0.56592
Condition
7
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

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