SpaceAtlas Space Object Data
NASA JPL SBDB · 2015 CQ12

2015 CQ12

2015 CQ12 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.041 AU it takes 1.06 yr to circle the Sun.

Apollo Observations: 42
Orbital Period · P
1.06 yr
v(q)
43.8 km/s
v(Q)
19.5 km/s
Diameter · ≈
0.11 km
TJ
5.82
Eccentricity · e
0.3845

Orbit and dynamics

Between its closest point (0.641 AU) and its farthest (1.441 AU), the heliocentric distance changes by 0.8 AU over every revolution.

One full revolution takes 1.06 yr (388 days), computed from the semi-major axis of 1.041 AU.

An eccentricity of 0.385 makes the orbit moderately elongated.

The orbital plane is tilted 7.55° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 43.8 km/s at perihelion and falls to 19.5 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 = 22.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.11 km.

Observation record and orbit quality

Astrometry from 42 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4836 arcseconds.

Condition code U = 2 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
1.041 AU
Eccentricity
0.3845
Perihelion
0.641 AU
Aphelion
1.441264 AU
Inclination
7.55°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
350.89°

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
2027-May-12 14:24 0.465277 AU
69604506 km
25.61 km/s
2028-May-29 09:43 0.144228 AU
21576181 km
14.52 km/s
2029-May-13 11:18 0.312350 AU
46726912 km
7.38 km/s
2029-Jul-20 09:56 0.280624 AU
41980687 km
10.29 km/s
2030-Apr-02 13:29 0.445599 AU
66660627 km
10.32 km/s
2030-Sep-12 01:50 0.368630 AU
55146329 km
14.56 km/s
2031-Mar-05 07:55 0.443734 AU
66381613 km
10.67 km/s
2031-Nov-02 10:00 0.325976 AU
48765356 km
11.13 km/s
2032-Feb-01 12:16 0.318520 AU
47649872 km
9.18 km/s
2033-Jan-05 21:01 0.067380 AU
10079927 km
12.77 km/s
2034-Jan-20 19:57 0.403952 AU
60430325 km
24.43 km/s
2045-May-26 21:30 0.183527 AU
27455303 km
16.23 km/s
2046-Jul-08 21:55 0.249725 AU
37358301 km
9.03 km/s
2047-Apr-07 16:40 0.435700 AU
65179779 km
10.07 km/s
2047-Sep-05 04:01 0.363854 AU
54431848 km
14.37 km/s
2048-Mar-08 23:24 0.451728 AU
67577495 km
10.74 km/s
2048-Oct-24 04:42 0.341849 AU
51139946 km
12.22 km/s
2049-Feb-06 06:05 0.346142 AU
51782162 km
9.55 km/s
2050-Jan-05 00:38 0.074427 AU
11134115 km
11.27 km/s
2051-Jan-19 00:52 0.354099 AU
52972389 km
22.87 km/s
2062-May-23 08:00 0.250573 AU
37485245 km
18.66 km/s
2063-Jun-17 18:37 0.191622 AU
28666309 km
8.18 km/s
2064-Apr-14 13:45 0.414690 AU
62036699 km
9.66 km/s
2064-Aug-24 09:50 0.351716 AU
52616021 km
13.77 km/s
2065-Mar-15 18:44 0.457631 AU
68460635 km
10.74 km/s
2065-Oct-11 17:10 0.359771 AU
53821010 km
13.52 km/s
2066-Feb-15 00:08 0.383917 AU
57433172 km
10.02 km/s
2067-Jan-06 09:02 0.147222 AU
22024120 km
8.83 km/s
2068-Jan-15 05:20 0.254787 AU
38115522 km
19.73 km/s
2079-May-18 04:13 0.356389 AU
53315029 km
22.16 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
22.6

Orbit Quality

RMS
0.48356
Condition
2
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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