SpaceAtlas Space Object Data
NASA JPL SBDB · 2007 UH

2007 UH

2007 UH belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.172 AU it takes 1.27 yr to circle the Sun.

Apollo Observations: 75
Orbital Period · P
1.27 yr
v(q)
39 km/s
v(Q)
19.4 km/s
Diameter · ≈
0.14 km
TJ
5.3
Eccentricity · e
0.3361

Orbit and dynamics

Between its closest point (0.778 AU) and its farthest (1.566 AU), the heliocentric distance changes by 0.788 AU over every revolution.

One full revolution takes 1.27 yr (463 days), computed from the semi-major axis of 1.172 AU.

An eccentricity of 0.336 makes the orbit moderately elongated.

The orbital plane is tilted 15.14° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 39 km/s at perihelion and falls to 19.4 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 = 22 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.14 km.

Observation record and orbit quality

Astrometry from 75 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6212 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
1.172 AU
Eccentricity
0.3361
Perihelion
0.778 AU
Aphelion
1.565909 AU
Inclination
15.14°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
169.84°

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-May-02 07:27 0.091526 AU
13692083 km
13.58 km/s
2040-Nov-08 01:07 0.183646 AU
27473076 km
9.56 km/s
2046-Apr-14 15:30 0.128222 AU
19181704 km
10.44 km/s
2054-Nov-10 04:50 0.130913 AU
19584256 km
13.02 km/s
2065-May-09 14:50 0.176463 AU
26398436 km
16.02 km/s
2079-Apr-25 06:42 0.072417 AU
10833482 km
11.66 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
22.0

Orbit Quality

RMS
0.62125
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.