SpaceAtlas Space Object Data
NASA JPL SBDB · 7474

7474

7474 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.566 AU once every 1.96 yr.

Amor Observations: 567
Orbital Period · P
1.96 yr
v(q)
32.2 km/s
v(Q)
17.6 km/s
Diameter · ≈
0.85 km
TJ
4.36
Eccentricity · e
0.2921

Orbit and dynamics

Between its closest point (1.108 AU) and its farthest (2.023 AU), the heliocentric distance changes by 0.915 AU over every revolution.

One full revolution takes 1.96 yr (716 days), computed from the semi-major axis of 1.566 AU.

An eccentricity of 0.292 makes the orbit moderately elongated.

The orbital plane is tilted 7.09° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32.2 km/s at perihelion and falls to 17.6 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 = 18.11 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.85 km.

Observation record and orbit quality

Astrometry from 567 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5979 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
1.566 AU
Eccentricity
0.2921
Perihelion
1.108 AU
Aphelion
2.023429 AU
Inclination
7.09°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
71.42°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
18.11

Orbit Quality

RMS
0.59789
Condition
0
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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