SpaceAtlas Space Object Data
NASA JPL SBDB · 326354

326354

326354 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.14 AU it takes 1.22 yr to circle the Sun.

Apollo Observations: 70
Orbital Period · P
1.22 yr
v(q)
33.3 km/s
v(Q)
23.4 km/s
Diameter · ≈
0.1 km
TJ
5.48
Eccentricity · e
0.1747

Orbit and dynamics

Between its closest point (0.941 AU) and its farthest (1.339 AU), the heliocentric distance changes by 0.398 AU over every revolution.

One full revolution takes 1.22 yr (445 days), computed from the semi-major axis of 1.14 AU.

An eccentricity of 0.175 makes the orbit moderately elongated.

The orbital plane is tilted 5.75° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.3 km/s at perihelion and falls to 23.4 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 = 22.78 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.1 km.

Observation record and orbit quality

Astrometry from 70 individual observations underpins this orbit; the fit leaves an RMS residual of 0.478 arcseconds.

Condition code U = 0 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
1.14 AU
Eccentricity
0.1747
Perihelion
0.941 AU
Aphelion
1.339158 AU
Inclination
5.75°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
23.87°

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-Aug-29 13:22 0.089807 AU
13434930 km
6.36 km/s
2029-Feb-18 07:12 0.245117 AU
36669011 km
4.94 km/s
2034-May-26 12:46 0.308759 AU
46189650 km
5.79 km/s
2034-Dec-29 20:34 0.268252 AU
40129896 km
11.66 km/s
2039-Aug-05 13:36 0.373048 AU
55807142 km
14.93 km/s
2040-Mar-29 03:04 0.319174 AU
47747699 km
6.58 km/s
2045-Nov-06 02:39 0.068979 AU
10319180 km
4.55 km/s
2051-Apr-28 13:25 0.335334 AU
50165251 km
6.66 km/s
2056-Aug-23 15:15 0.127930 AU
19138024 km
7.58 km/s
2057-Feb-25 17:14 0.260947 AU
39037124 km
5.36 km/s
2062-Jun-02 01:56 0.298747 AU
44691909 km
5.49 km/s
2062-Dec-26 19:49 0.223029 AU
33364713 km
10.18 km/s
2067-Aug-03 00:54 0.419633 AU
62776134 km
16.31 km/s
2068-Apr-03 09:08 0.324951 AU
48611976 km
6.70 km/s
2073-Oct-18 12:17 0.057846 AU
8653683 km
4.56 km/s
2079-May-03 17:24 0.333297 AU
49860558 km
6.59 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
22.78

Orbit Quality

RMS
0.478
Condition
0
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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