SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 WF2

2022 WF2

2022 WF2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.973 AU and a period of 0.96 yr.

Aten Observations: 53
Orbital Period · P
0.96 yr
v(q)
44.8 km/s
v(Q)
20.4 km/s
Diameter · ≈
0.02 km
TJ
6.15
Eccentricity · e
0.3749

Orbit and dynamics

Between its closest point (0.608 AU) and its farthest (1.338 AU), the heliocentric distance changes by 0.73 AU over every revolution.

One full revolution takes 0.96 yr (350 days), computed from the semi-major axis of 0.973 AU.

An eccentricity of 0.375 makes the orbit moderately elongated.

Its inclination of 1.67° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 44.8 km/s at perihelion and falls to 20.4 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 = 26.33 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 53 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3224 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
0.9728 AU
Eccentricity
0.3749
Perihelion
0.608 AU
Aphelion
1.337503 AU
Inclination
1.67°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
325.64°

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-Feb-19 12:36 0.288910 AU
43220364 km
8.98 km/s
2027-May-30 00:21 0.324850 AU
48596868 km
10.94 km/s
2028-Mar-24 12:45 0.110204 AU
16486224 km
8.07 km/s
2029-Mar-22 13:45 0.077194 AU
11548096 km
15.07 km/s
2030-Mar-12 23:38 0.317664 AU
47521916 km
22.76 km/s
2044-Dec-01 06:15 0.350440 AU
52425074 km
23.33 km/s
2045-Nov-21 10:06 0.103202 AU
15438795 km
15.44 km/s
2046-Nov-19 01:56 0.121497 AU
18175702 km
8.19 km/s
2047-Sep-14 20:59 0.334108 AU
49981890 km
10.98 km/s
2047-Dec-22 16:29 0.295686 AU
44234055 km
9.04 km/s
2048-Aug-11 23:24 0.395743 AU
59202321 km
14.76 km/s
2049-Jan-15 15:22 0.351879 AU
52640288 km
9.88 km/s
2049-Jul-14 05:06 0.405073 AU
60598012 km
15.37 km/s
2050-Feb-08 06:59 0.331184 AU
49544420 km
9.52 km/s
2050-Jun-13 23:55 0.369545 AU
55283137 km
12.97 km/s
2051-Mar-10 11:00 0.217440 AU
32528577 km
7.90 km/s
2052-Mar-25 17:11 0.026292 AU
3933244 km
12.03 km/s
2053-Mar-16 19:50 0.235737 AU
35265772 km
19.78 km/s
2067-Dec-04 19:24 0.279325 AU
41786455 km
25.37 km/s
2068-Nov-23 16:51 0.016746 AU
2505146 km
17.40 km/s
2069-Nov-17 01:08 0.006215 AU
929730 km
9.64 km/s
2075-Mar-26 15:05 0.026495 AU
3963548 km
11.78 km/s
2076-Mar-16 14:21 0.063953 AU
9567287 km
19.73 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
26.33

Orbit Quality

RMS
0.32242
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.

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