SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 AZ13

2017 AZ13

2017 AZ13 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.928 AU and a period of 0.89 yr.

Aten Observations: 116
Orbital Period · P
0.89 yr
v(q)
40.6 km/s
v(Q)
23.5 km/s
Diameter · ≈
0.14 km
TJ
6.38
Eccentricity · e
0.2658

Orbit and dynamics

The path is an ellipse reaching 0.682 AU from the Sun at perihelion and 1.175 AU at aphelion, a radial span of 0.493 AU.

Applying Kepler's third law to a = 0.928 AU gives an orbital period of 0.89 yr, or about 327 days.

An eccentricity of 0.266 makes the orbit moderately elongated.

The orbital plane is tilted 18.32° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 40.6 km/s at perihelion and falls to 23.5 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 = 21.97 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.14 km.

Observation record and orbit quality

The current orbit solution is based on 116 observations and has a weighted RMS residual of 0.421 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
0.9284 AU
Eccentricity
0.2658
Perihelion
0.682 AU
Aphelion
1.175169 AU
Inclination
18.32°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
327.38°

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
2034-Jan-28 02:19 0.196431 AU
29385629 km
10.69 km/s
2042-Jan-05 07:53 0.150653 AU
22537359 km
11.48 km/s
2059-Jan-12 00:44 0.148016 AU
22142891 km
10.90 km/s
2076-Jan-19 05:23 0.164964 AU
24678236 km
10.71 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
21.97

Orbit Quality

RMS
0.42105
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.

Keep exploring

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