SpaceAtlas Space Object Data
NASA JPL SBDB · 194126

194126

194126 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.433 AU once every 1.72 yr.

Amor Observations: 1,137
Orbital Period · P
1.72 yr
v(q)
32 km/s
v(Q)
19.3 km/s
Diameter · ≈
0.95 km
TJ
4.54
Eccentricity · e
0.2477

Orbit and dynamics

Between its closest point (1.078 AU) and its farthest (1.788 AU), the heliocentric distance changes by 0.71 AU over every revolution.

One full revolution takes 1.72 yr (627 days), computed from the semi-major axis of 1.433 AU.

An eccentricity of 0.248 makes the orbit moderately elongated.

A steep inclination of 26.67° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 32 km/s at perihelion and falls to 19.3 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 17.87 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.95 km.

Observation record and orbit quality

Astrometry from 1,137 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4649 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
1.433 AU
Eccentricity
0.2477
Perihelion
1.078 AU
Aphelion
1.787954 AU
Inclination
26.67°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
253.04°

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
2030-Apr-28 02:08 0.087184 AU
13042519 km
14.41 km/s
2042-Apr-29 04:55 0.104531 AU
15637687 km
14.30 km/s
2054-Apr-30 21:41 0.147604 AU
22081218 km
14.27 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
17.87

Orbit Quality

RMS
0.46495
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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