SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 NB7

2017 NB7

2017 NB7 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.616 AU it takes 2.05 yr to circle the Sun.

Apollo Observations: 35
Orbital Period · P
2.05 yr
v(q)
34.6 km/s
v(Q)
15.9 km/s
Diameter · ≈
0.07 km
TJ
4.25
Eccentricity · e
0.3715

Orbit and dynamics

Between its closest point (1.016 AU) and its farthest (2.216 AU), the heliocentric distance changes by 1.2 AU over every revolution.

One full revolution takes 2.05 yr (750 days), computed from the semi-major axis of 1.616 AU.

An eccentricity of 0.371 makes the orbit moderately elongated.

The orbital plane is tilted 5.25° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.6 km/s at perihelion and falls to 15.9 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.07 km.

Observation record and orbit quality

Astrometry from 35 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5058 arcseconds.

Condition code U = 5 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
1.616 AU
Eccentricity
0.3715
Perihelion
1.016 AU
Aphelion
2.216344 AU
Inclination
5.25°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
108.24°

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
23.5

Orbit Quality

RMS
0.5058
Condition
5
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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