SpaceAtlas Space Object Data
NASA JPL SBDB · 2010 UP

2010 UP

2010 UP belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.064 AU it takes 1.10 yr to circle the Sun.

Apollo Observations: 68
Orbital Period · P
1.10 yr
v(q)
31.9 km/s
v(Q)
26.1 km/s
Diameter · ≈
0.04 km
TJ
5.78
Eccentricity · e
0.099

Orbit and dynamics

The path is an ellipse reaching 0.958 AU from the Sun at perihelion and 1.169 AU at aphelion, a radial span of 0.211 AU.

Applying Kepler's third law to a = 1.064 AU gives an orbital period of 1.10 yr, or about 401 days.

With e = 0.099, the orbit is close to circular.

The orbital plane is tilted 9.32° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.9 km/s at perihelion and falls to 26.1 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 = 24.98 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 68 observations and has a weighted RMS residual of 0.4804 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
1.064 AU
Eccentricity
0.099
Perihelion
0.958 AU
Aphelion
1.169336 AU
Inclination
9.32°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
24.9°

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
2032-Oct-16 00:35 0.255509 AU
38223654 km
10.84 km/s
2033-Jun-10 14:28 0.213414 AU
31926233 km
4.44 km/s
2034-Mar-24 21:13 0.274052 AU
40997538 km
10.56 km/s
2043-Oct-07 11:25 0.451701 AU
67573524 km
16.25 km/s
2044-Oct-26 04:24 0.157439 AU
23552467 km
5.41 km/s
2045-Mar-29 12:29 0.113156 AU
16927918 km
6.23 km/s
2055-Oct-28 07:59 0.036850 AU
5512631 km
5.04 km/s
2056-Apr-10 12:07 0.088761 AU
13278488 km
5.18 km/s
2066-Oct-28 14:03 0.060241 AU
9011856 km
4.91 km/s
2067-Apr-07 03:45 0.086904 AU
13000639 km
5.29 km/s
2076-Oct-06 13:58 0.451674 AU
67569442 km
16.24 km/s
2077-Oct-18 10:06 0.190080 AU
28435551 km
5.62 km/s
2078-Mar-25 10:13 0.141979 AU
21239744 km
6.86 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
24.98

Orbit Quality

RMS
0.48038
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

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