SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 NN6

2017 NN6

2017 NN6 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.232 AU it takes 3.33 yr to circle the Sun.

Apollo Observations: 88
Orbital Period · P
3.33 yr
v(q)
51.4 km/s
v(Q)
7.7 km/s
Diameter · ≈
0.35 km
TJ
3.21
Eccentricity · e
0.7388

Orbit and dynamics

Between its closest point (0.583 AU) and its farthest (3.881 AU), the heliocentric distance changes by 3.298 AU over every revolution.

One full revolution takes 3.33 yr (1,218 days), computed from the semi-major axis of 2.232 AU.

The high eccentricity (0.739) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 7.8° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 51.4 km/s at perihelion and falls to 7.7 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 = 20.01 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.35 km.

Observation record and orbit quality

Astrometry from 88 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4145 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
2.232 AU
Eccentricity
0.7388
Perihelion
0.583 AU
Aphelion
3.881002 AU
Inclination
7.8°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
254.15°

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
2027-Jul-17 21:59 0.190465 AU
28493126 km
27.70 km/s
2033-Dec-22 08:51 0.325651 AU
48716741 km
31.99 km/s
2037-Jul-24 01:59 0.338938 AU
50704399 km
31.83 km/s
2044-Jan-08 02:31 0.038254 AU
5722666 km
22.61 km/s
2054-Jan-16 02:43 0.131940 AU
19737968 km
18.36 km/s
2064-Mar-05 15:11 0.373125 AU
55818703 km
18.33 km/s
2074-Apr-22 20:09 0.408938 AU
61176209 km
20.47 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
20.01

Orbit Quality

RMS
0.41455
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

Explore asteroids, comets and near-Earth objects with JPL orbital data.