SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 DF26

2022 DF26

2022 DF26 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.822 AU and a period of 0.75 yr.

Aten Observations: 14
Orbital Period · P
0.75 yr
v(q)
41.1 km/s
v(Q)
26.2 km/s
Diameter · ≈
0.01 km
TJ
7.1
Eccentricity · e
0.2216

Orbit and dynamics

The path is an ellipse reaching 0.64 AU from the Sun at perihelion and 1.004 AU at aphelion, a radial span of 0.364 AU.

Applying Kepler's third law to a = 0.822 AU gives an orbital period of 0.75 yr, or about 272 days.

An eccentricity of 0.222 makes the orbit moderately elongated.

The orbital plane is tilted 9.91° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 41.1 km/s at perihelion and falls to 26.2 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 = 27.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 14 observations and has a weighted RMS residual of 0.2926 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
0.8219 AU
Eccentricity
0.2216
Perihelion
0.64 AU
Aphelion
1.004033 AU
Inclination
9.91°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
79.19°

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-Mar-20 20:19 0.136891 AU
20478594 km
10.12 km/s
2031-Mar-21 10:18 0.227683 AU
34060865 km
13.86 km/s
2034-Mar-18 08:33 0.330236 AU
49402625 km
17.89 km/s
2045-Feb-15 18:25 0.328418 AU
49130610 km
19.92 km/s
2048-Feb-12 14:03 0.197436 AU
29536050 km
15.88 km/s
2051-Feb-09 18:30 0.088199 AU
13194349 km
11.91 km/s
2054-Feb-11 03:21 0.059458 AU
8894736 km
8.35 km/s
2063-Mar-18 10:38 0.092350 AU
13815362 km
8.02 km/s
2066-Mar-21 17:11 0.101568 AU
15194362 km
11.34 km/s
2069-Mar-20 05:48 0.117152 AU
17525698 km
15.15 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
27.2

Orbit Quality

RMS
0.29263
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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