SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 FZ2

2023 FZ2

2023 FZ2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.909 AU and a period of 0.87 yr.

Aten Observations: 40
Orbital Period · P
0.87 yr
v(q)
42.3 km/s
v(Q)
23.1 km/s
Diameter · ≈
0.02 km
TJ
6.49
Eccentricity · e
0.2951

Orbit and dynamics

Between its closest point (0.641 AU) and its farthest (1.177 AU), the heliocentric distance changes by 0.536 AU over every revolution.

One full revolution takes 0.87 yr (316 days), computed from the semi-major axis of 0.909 AU.

An eccentricity of 0.295 makes the orbit moderately elongated.

The orbital plane is tilted 17.6° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 42.3 km/s at perihelion and falls to 23.1 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 = 26.66 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 40 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5594 arcseconds.

Condition code U = 6 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
0.9087 AU
Eccentricity
0.2951
Perihelion
0.641 AU
Aphelion
1.176857 AU
Inclination
17.6°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
155.14°

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-Sep-30 09:02 0.294008 AU
43982975 km
13.71 km/s
2029-Feb-19 20:24 0.308144 AU
46097747 km
9.58 km/s
2029-Jun-09 03:30 0.400448 AU
59906133 km
9.00 km/s
2030-Mar-15 02:50 0.398885 AU
59672287 km
23.35 km/s
2034-Nov-19 06:04 0.251425 AU
37612641 km
14.56 km/s
2035-Aug-10 14:43 0.414097 AU
61948009 km
14.93 km/s
2036-Mar-26 20:11 0.008941 AU
1337623 km
12.68 km/s
2040-Dec-13 16:05 0.483577 AU
72342077 km
23.46 km/s
2041-Sep-21 15:37 0.314845 AU
47100076 km
14.24 km/s
2042-Mar-04 21:21 0.259892 AU
38879292 km
9.70 km/s
2043-Mar-12 08:50 0.465530 AU
69642336 km
25.77 km/s
2047-Nov-04 06:58 0.233528 AU
34935220 km
12.84 km/s
2048-Jul-21 14:41 0.431336 AU
64526975 km
13.92 km/s
2049-Mar-23 13:48 0.107117 AU
16024521 km
16.49 km/s
2053-Dec-03 17:27 0.298120 AU
44598049 km
18.70 km/s
2055-Mar-25 00:00 0.059786 AU
8943923 km
10.13 km/s
2062-Mar-17 22:17 0.230406 AU
34468236 km
21.33 km/s
2068-Mar-26 22:44 0.009213 AU
1378288 km
12.61 km/s
2072-Dec-10 23:26 0.416791 AU
62351112 km
21.77 km/s
2073-Sep-13 13:48 0.327900 AU
49053068 km
14.71 km/s
2074-Mar-15 04:36 0.175812 AU
26301057 km
9.71 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
26.66

Orbit Quality

RMS
0.55942
Condition
6
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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