SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 FK102

2017 FK102

2017 FK102 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.123 AU it takes 1.19 yr to circle the Sun.

Apollo Observations: 96
Orbital Period · P
1.19 yr
v(q)
33.6 km/s
v(Q)
23.6 km/s
Diameter · ≈
0.27 km
TJ
5.36
Eccentricity · e
0.1748

Orbit and dynamics

Between its closest point (0.926 AU) and its farthest (1.319 AU), the heliocentric distance changes by 0.393 AU over every revolution.

One full revolution takes 1.19 yr (435 days), computed from the semi-major axis of 1.123 AU.

An eccentricity of 0.175 makes the orbit moderately elongated.

A steep inclination of 37.94° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 33.6 km/s at perihelion and falls to 23.6 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 = 20.63 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.27 km.

Observation record and orbit quality

Astrometry from 96 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4907 arcseconds.

Condition code U = 1 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
1.123 AU
Eccentricity
0.1748
Perihelion
0.926 AU
Aphelion
1.3193 AU
Inclination
37.94°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
61.6°

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
2029-Feb-14 14:11 0.433162 AU
64800155 km
18.83 km/s
2035-Aug-27 23:21 0.295133 AU
44151243 km
21.12 km/s
2036-Feb-01 09:23 0.380666 AU
56946850 km
20.69 km/s
2041-Aug-11 07:35 0.060156 AU
8999229 km
20.59 km/s
2042-Feb-04 11:27 0.272573 AU
40776279 km
18.90 km/s
2047-Jul-26 14:21 0.333753 AU
49928788 km
23.83 km/s
2048-Feb-10 17:25 0.336510 AU
50341107 km
18.60 km/s
2054-Feb-18 00:12 0.494449 AU
73968514 km
19.01 km/s
2054-Sep-07 04:44 0.486933 AU
72844197 km
23.34 km/s
2060-Aug-21 01:17 0.180645 AU
27024079 km
20.45 km/s
2061-Feb-01 20:02 0.321869 AU
48150955 km
19.78 km/s
2066-Aug-05 09:12 0.149101 AU
22305176 km
21.43 km/s
2067-Feb-06 19:17 0.277739 AU
41549140 km
18.65 km/s
2072-Jul-19 15:59 0.452128 AU
67637341 km
25.86 km/s
2073-Feb-12 19:36 0.393418 AU
58854519 km
18.71 km/s
2079-Aug-31 23:10 0.365910 AU
54739324 km
21.80 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
20.63

Orbit Quality

RMS
0.49073
Condition
1
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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