SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 SH6

2020 SH6

2020 SH6 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.102 AU once every 1.16 yr.

Amor Observations: 61
Orbital Period · P
1.16 yr
v(q)
30.5 km/s
v(Q)
26.4 km/s
Diameter · ≈
0.04 km
TJ
5.64
Eccentricity · e
0.0732

Orbit and dynamics

The path is an ellipse reaching 1.021 AU from the Sun at perihelion and 1.183 AU at aphelion, a radial span of 0.162 AU.

Applying Kepler's third law to a = 1.102 AU gives an orbital period of 1.16 yr, or about 423 days.

With e = 0.073, the orbit is close to circular.

Its inclination of 1.7° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 30.5 km/s at perihelion and falls to 26.4 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 24.8 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

The current orbit solution is based on 61 observations and has a weighted RMS residual of 0.5937 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
1.102 AU
Eccentricity
0.0732
Perihelion
1.021 AU
Aphelion
1.182666 AU
Inclination
1.7°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
34.9°

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
2035-Apr-14 19:32 0.121773 AU
18216922 km
1.95 km/s
2035-Aug-29 00:24 0.107115 AU
16024138 km
4.52 km/s
2042-Jun-05 19:21 0.165801 AU
24803488 km
6.26 km/s
2042-Nov-12 04:12 0.148800 AU
22260191 km
2.67 km/s
2057-Apr-11 16:06 0.126266 AU
18889127 km
2.06 km/s
2057-Aug-28 22:59 0.115245 AU
17240405 km
4.77 km/s
2064-Jun-08 01:59 0.124364 AU
18604538 km
5.03 km/s
2064-Oct-29 11:00 0.130946 AU
19589212 km
2.19 km/s
2079-Mar-24 13:42 0.151898 AU
22723642 km
2.71 km/s
2079-Sep-01 21:40 0.174242 AU
26066162 km
6.53 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
24.8

Orbit Quality

RMS
0.59373
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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