SpaceAtlas Space Object Data
NASA JPL SBDB · 2018 MY6

2018 MY6

2018 MY6 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.905 AU and a period of 0.86 yr.

Aten Observations: 106
Orbital Period · P
0.86 yr
v(q)
36.6 km/s
v(Q)
26.8 km/s
Diameter · ≈
0.19 km
TJ
6.28
Eccentricity · e
0.1542

Orbit and dynamics

Between its closest point (0.766 AU) and its farthest (1.045 AU), the heliocentric distance changes by 0.279 AU over every revolution.

One full revolution takes 0.86 yr (315 days), computed from the semi-major axis of 0.905 AU.

An eccentricity of 0.154 makes the orbit moderately elongated.

A steep inclination of 49.99° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 36.6 km/s at perihelion and falls to 26.8 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 = 21.38 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.19 km.

Observation record and orbit quality

Astrometry from 106 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4083 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
0.9051 AU
Eccentricity
0.1542
Perihelion
0.766 AU
Aphelion
1.044666 AU
Inclination
49.99°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
268.0°

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
2030-Jul-05 07:34 0.394754 AU
59054372 km
26.28 km/s
2030-Dec-23 10:29 0.222388 AU
33268721 km
28.80 km/s
2031-Jun-17 22:58 0.339961 AU
50857411 km
26.33 km/s
2037-Jan-01 11:32 0.238421 AU
35667246 km
29.03 km/s
2037-Jun-20 23:33 0.203706 AU
30473936 km
24.83 km/s
2043-Jan-10 21:46 0.321962 AU
48164834 km
29.87 km/s
2043-Jun-24 16:16 0.076249 AU
11406672 km
24.02 km/s
2049-Jan-18 13:15 0.422987 AU
63277895 km
31.10 km/s
2049-Jun-27 00:04 0.052856 AU
7907191 km
23.85 km/s
2049-Nov-29 01:56 0.472085 AU
70622972 km
31.14 km/s
2055-Jun-30 09:07 0.170541 AU
25512504 km
24.22 km/s
2055-Dec-08 01:31 0.363589 AU
54392087 km
29.89 km/s
2061-Jul-02 18:14 0.290222 AU
43416568 km
25.11 km/s
2061-Dec-15 23:10 0.271611 AU
40632432 km
29.09 km/s
2062-Jun-14 19:45 0.447950 AU
67012367 km
27.91 km/s
2067-Jul-06 02:17 0.406719 AU
60844316 km
26.45 km/s
2067-Dec-24 14:38 0.219868 AU
32891784 km
28.78 km/s
2068-Jun-17 12:06 0.332044 AU
49673090 km
26.23 km/s
2074-Jan-01 01:49 0.233302 AU
34901471 km
28.98 km/s
2074-Jun-21 00:36 0.217392 AU
32521450 km
24.97 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
21.38

Orbit Quality

RMS
0.40826
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.