SpaceAtlas Space Object Data
NASA JPL SBDB · 2007 RS1

2007 RS1

2007 RS1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.244 AU it takes 1.39 yr to circle the Sun.

Apollo Observations: 19
Orbital Period · P
1.39 yr
v(q)
40.3 km/s
v(Q)
17.7 km/s
TJ
5.07
Eccentricity · e
0.3908

Orbit and dynamics

Between its closest point (0.758 AU) and its farthest (1.73 AU), the heliocentric distance changes by 0.972 AU over every revolution.

One full revolution takes 1.39 yr (507 days), computed from the semi-major axis of 1.244 AU.

An eccentricity of 0.391 makes the orbit moderately elongated.

The orbital plane is tilted 8.15° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 40.3 km/s at perihelion and falls to 17.7 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

Neither a measured diameter nor a reliable absolute magnitude is available for 2007 RS1, so its physical size remains unconstrained.

Observation record and orbit quality

Astrometry from 19 individual observations underpins this orbit; the fit leaves an RMS residual of 0.8405 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.244 AU
Eccentricity
0.3908
Perihelion
0.758 AU
Aphelion
1.730155 AU
Inclination
8.15°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
147.1°

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-Mar-06 20:58 0.193834 AU
28997162 km
22.49 km/s
2055-Feb-20 07:38 0.043858 AU
6561061 km
13.18 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
30.9

Orbit Quality

RMS
0.84054
Condition
7
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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