SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 FN64

2017 FN64

2017 FN64 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.152 AU it takes 1.24 yr to circle the Sun.

Apollo Observations: 67
Orbital Period · P
1.24 yr
v(q)
38.7 km/s
v(Q)
19.9 km/s
Diameter · ≈
0.14 km
TJ
5.34
Eccentricity · e
0.321

Orbit and dynamics

Between its closest point (0.782 AU) and its farthest (1.522 AU), the heliocentric distance changes by 0.74 AU over every revolution.

One full revolution takes 1.24 yr (452 days), computed from the semi-major axis of 1.152 AU.

An eccentricity of 0.321 makes the orbit moderately elongated.

A steep inclination of 23.24° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 38.7 km/s at perihelion and falls to 19.9 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 = 22 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.14 km.

Observation record and orbit quality

Astrometry from 67 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6272 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
1.152 AU
Eccentricity
0.321
Perihelion
0.782 AU
Aphelion
1.521792 AU
Inclination
23.24°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
265.16°

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
2033-Feb-27 02:16 0.277587 AU
41526367 km
16.48 km/s
2037-Nov-16 11:34 0.364996 AU
54602610 km
13.83 km/s
2038-Mar-07 23:04 0.277826 AU
41562138 km
12.90 km/s
2042-Sep-26 03:22 0.161715 AU
24192227 km
14.90 km/s
2043-Mar-27 04:48 0.438058 AU
65532611 km
13.02 km/s
2047-Aug-23 11:46 0.295484 AU
44203824 km
19.70 km/s
2054-Feb-27 12:41 0.269677 AU
40343123 km
16.21 km/s
2058-Nov-14 14:28 0.360101 AU
53870363 km
13.97 km/s
2059-Mar-08 20:33 0.282384 AU
42244011 km
12.87 km/s
2063-Sep-27 23:00 0.167451 AU
25050265 km
14.84 km/s
2064-Mar-25 15:38 0.433058 AU
64784482 km
13.02 km/s
2068-Aug-27 09:16 0.247355 AU
37003750 km
18.56 km/s
2075-Feb-28 14:46 0.326566 AU
48853629 km
18.36 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
22.0

Orbit Quality

RMS
0.62716
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.

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