SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 SB14

2017 SB14

2017 SB14 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.284 AU it takes 1.45 yr to circle the Sun.

Apollo Observations: 93
Orbital Period · P
1.45 yr
v(q)
35.7 km/s
v(Q)
19.3 km/s
Diameter · ≈
0.22 km
TJ
4.91
Eccentricity · e
0.2972

Orbit and dynamics

Between its closest point (0.902 AU) and its farthest (1.666 AU), the heliocentric distance changes by 0.764 AU over every revolution.

One full revolution takes 1.45 yr (531 days), computed from the semi-major axis of 1.284 AU.

An eccentricity of 0.297 makes the orbit moderately elongated.

A steep inclination of 25.64° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 35.7 km/s at perihelion and falls to 19.3 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 = 21.05 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.22 km.

Observation record and orbit quality

Astrometry from 93 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4896 arcseconds.

Condition code U = 2 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
1.284 AU
Eccentricity
0.2972
Perihelion
0.902 AU
Aphelion
1.665605 AU
Inclination
25.64°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
262.43°

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
2031-Apr-13 11:25 0.399800 AU
59809178 km
21.75 km/s
2033-Oct-25 20:02 0.433312 AU
64822539 km
12.76 km/s
2034-Mar-03 12:54 0.154185 AU
23065706 km
15.00 km/s
2047-Apr-14 22:45 0.421293 AU
63024513 km
22.23 km/s
2049-Oct-24 20:59 0.433753 AU
64888463 km
12.78 km/s
2050-Mar-05 03:54 0.138298 AU
20689158 km
14.98 km/s
2063-Apr-15 00:47 0.421326 AU
63029515 km
22.23 km/s
2065-Oct-25 05:04 0.434008 AU
64926646 km
12.77 km/s
2066-Mar-04 22:20 0.141081 AU
21105459 km
14.98 km/s
2079-Apr-13 17:14 0.400987 AU
59986753 km
21.77 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
21.05

Orbit Quality

RMS
0.48956
Condition
2
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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