SpaceAtlas Space Object Data
NASA JPL SBDB · 152563

152563

152563 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.908 AU and a period of 0.87 yr.

Aten Observations: 638
Orbital Period · P
0.87 yr
v(q)
41.3 km/s
v(Q)
23.7 km/s
Diameter · ≈
0.41 km
TJ
6.53
Eccentricity · e
0.2717

Orbit and dynamics

Between its closest point (0.661 AU) and its farthest (1.155 AU), the heliocentric distance changes by 0.494 AU over every revolution.

One full revolution takes 0.87 yr (316 days), computed from the semi-major axis of 0.908 AU.

An eccentricity of 0.272 makes the orbit moderately elongated.

The orbital plane is tilted 7.25° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 41.3 km/s at perihelion and falls to 23.7 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

The measured diameter is 0.27 km, a value from direct size determination rather than from brightness alone.

A geometric albedo of 0.287 points to a comparatively bright, reflective surface.

Observation record and orbit quality

Astrometry from 638 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4422 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
0.9079 AU
Eccentricity
0.2717
Perihelion
0.661 AU
Aphelion
1.154576 AU
Inclination
7.25°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
110.15°

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
2029-Dec-08 11:43 0.157930 AU
23625987 km
6.57 km/s
2030-Jun-16 08:41 0.348416 AU
52122358 km
11.55 km/s
2031-Feb-27 03:21 0.307674 AU
46027382 km
17.66 km/s
2035-Nov-23 11:11 0.253872 AU
37978686 km
15.08 km/s
2036-Jul-31 00:46 0.348610 AU
52151386 km
12.40 km/s
2037-Feb-28 22:50 0.072361 AU
10825037 km
7.70 km/s
2042-Sep-23 03:03 0.262488 AU
39267633 km
7.71 km/s
2043-Jan-02 12:31 0.180564 AU
27012033 km
7.20 km/s
2043-May-29 12:53 0.326689 AU
48871956 km
9.87 km/s
2044-Feb-22 20:18 0.427409 AU
63939542 km
21.53 km/s
2048-Nov-18 15:12 0.152755 AU
22851885 km
10.94 km/s
2049-Jul-14 06:15 0.357464 AU
53475822 km
12.68 km/s
2050-Mar-04 14:02 0.110552 AU
16538343 km
11.13 km/s
2054-Dec-01 07:01 0.442629 AU
66216305 km
21.56 km/s
2055-Aug-28 19:33 0.312606 AU
46765161 km
10.52 km/s
2056-Jan-27 22:51 0.165524 AU
24762000 km
7.26 km/s
2056-Apr-29 09:54 0.273526 AU
40918834 km
6.06 km/s
2061-Nov-21 11:34 0.129394 AU
19357089 km
7.00 km/s
2062-Jun-27 08:07 0.355529 AU
53186452 km
12.21 km/s
2063-Mar-01 22:55 0.229376 AU
34314125 km
15.14 km/s
2067-Nov-26 16:54 0.327602 AU
49008496 km
17.66 km/s
2068-Aug-10 21:25 0.337728 AU
50523396 km
11.88 km/s
2069-Feb-17 17:54 0.116170 AU
17378763 km
7.00 km/s
2074-Oct-15 02:35 0.224741 AU
33620773 km
4.86 km/s
2074-Dec-19 19:43 0.170738 AU
25542037 km
6.88 km/s
2075-Jun-09 10:11 0.341101 AU
51027980 km
10.94 km/s
2076-Feb-25 11:38 0.358676 AU
53657182 km
19.31 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
0.272 km
Albedo
0.287
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
19.71

Orbit Quality

RMS
0.44219
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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