SpaceAtlas Space Object Data
NASA JPL SBDB · 2008 TC2

2008 TC2

2008 TC2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.066 AU it takes 1.10 yr to circle the Sun.

Apollo Observations: 94
Orbital Period · P
1.10 yr
v(q)
39.8 km/s
v(Q)
20.9 km/s
Diameter · ≈
0.07 km
TJ
5.74
Eccentricity · e
0.3106

Orbit and dynamics

Between its closest point (0.735 AU) and its farthest (1.397 AU), the heliocentric distance changes by 0.662 AU over every revolution.

One full revolution takes 1.10 yr (402 days), computed from the semi-major axis of 1.066 AU.

An eccentricity of 0.311 makes the orbit moderately elongated.

The orbital plane is tilted 5.76° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 39.8 km/s at perihelion and falls to 20.9 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 = 23.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.07 km.

Observation record and orbit quality

Astrometry from 94 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5949 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
1.066 AU
Eccentricity
0.3106
Perihelion
0.735 AU
Aphelion
1.3971 AU
Inclination
5.76°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
97.06°

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-Mar-02 22:22 0.256803 AU
38417242 km
17.77 km/s
2029-Feb-04 09:07 0.328931 AU
49207312 km
7.46 km/s
2029-May-23 10:44 0.269905 AU
40377141 km
9.76 km/s
2029-Dec-08 06:28 0.418257 AU
62570431 km
9.27 km/s
2030-Sep-26 14:59 0.094114 AU
14079228 km
7.69 km/s
2039-Mar-02 01:11 0.291705 AU
43638406 km
18.83 km/s
2040-Feb-11 04:51 0.305462 AU
45696459 km
7.01 km/s
2040-May-15 03:50 0.256757 AU
38410329 km
9.24 km/s
2040-Dec-12 04:58 0.422006 AU
63131193 km
9.31 km/s
2041-Sep-25 19:39 0.148236 AU
22175825 km
6.26 km/s
2042-Oct-19 13:38 0.461352 AU
69017307 km
24.03 km/s
2050-Feb-26 02:55 0.373298 AU
55844554 km
21.33 km/s
2051-Mar-02 07:09 0.245149 AU
36673792 km
5.48 km/s
2051-Apr-27 10:58 0.217665 AU
32562208 km
7.86 km/s
2051-Dec-20 19:41 0.425674 AU
63679868 km
9.34 km/s
2052-Aug-15 22:05 0.227951 AU
34101034 km
7.25 km/s
2052-Oct-15 10:34 0.235054 AU
35163574 km
6.30 km/s
2053-Oct-15 06:29 0.365842 AU
54729163 km
21.10 km/s
2061-Feb-20 13:06 0.492012 AU
73604022 km
25.02 km/s
2062-Mar-25 00:41 0.123042 AU
18406843 km
7.06 km/s
2062-Dec-30 17:17 0.421618 AU
63073204 km
9.26 km/s
2063-Jul-22 02:48 0.273961 AU
40983943 km
9.35 km/s
2063-Nov-03 22:55 0.310382 AU
46432418 km
7.55 km/s
2064-Oct-09 23:20 0.247383 AU
37007903 km
17.50 km/s
2073-Mar-14 09:05 0.042187 AU
6311124 km
10.76 km/s
2074-Jan-12 00:51 0.400127 AU
59858219 km
8.84 km/s
2074-Jun-28 02:10 0.293804 AU
43952438 km
10.44 km/s
2074-Nov-19 19:59 0.369281 AU
55243599 km
8.54 km/s
2075-Oct-04 20:56 0.104546 AU
15639814 km
13.24 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
23.4

Orbit Quality

RMS
0.59488
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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