SpaceAtlas Space Object Data
NASA JPL SBDB · 2007 TF15

2007 TF15

2007 TF15 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.109 AU once every 1.17 yr.

Amor Observations: 76
Orbital Period · P
1.17 yr
v(q)
29.6 km/s
v(Q)
27.1 km/s
Diameter · ≈
0.04 km
TJ
5.61
Eccentricity · e
0.0444

Orbit and dynamics

The path is an ellipse reaching 1.059 AU from the Sun at perihelion and 1.158 AU at aphelion, a radial span of 0.099 AU.

Applying Kepler's third law to a = 1.109 AU gives an orbital period of 1.17 yr, or about 427 days.

With e = 0.044, the orbit is close to circular.

Its inclination of 4.26° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 29.6 km/s at perihelion and falls to 27.1 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 = 24.69 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 76 observations and has a weighted RMS residual of 0.5211 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
1.109 AU
Eccentricity
0.0444
Perihelion
1.059 AU
Aphelion
1.15824 AU
Inclination
4.26°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
146.01°

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
2028-Sep-05 04:20 0.132313 AU
19793781 km
2.77 km/s
2035-Sep-07 06:30 0.132660 AU
19845680 km
2.81 km/s
2042-Sep-13 22:55 0.136522 AU
20423451 km
2.97 km/s
2049-Sep-24 15:17 0.143484 AU
21464878 km
3.18 km/s
2056-Oct-07 20:33 0.152416 AU
22801150 km
3.36 km/s
2063-Oct-23 16:39 0.161763 AU
24199448 km
3.46 km/s
2070-Nov-08 18:09 0.169613 AU
25373705 km
3.42 km/s
2077-Nov-25 22:19 0.173939 AU
26020851 km
3.24 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
24.69

Orbit Quality

RMS
0.52114
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.

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