SpaceAtlas Space Object Data
NASA JPL SBDB · 357622

357622

357622 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.084 AU it takes 1.13 yr to circle the Sun.

Apollo Observations: 319
Orbital Period · P
1.13 yr
v(q)
52.3 km/s
v(Q)
15.7 km/s
Diameter · ≈
0.31 km
TJ
5.57
Eccentricity · e
0.5383

Orbit and dynamics

Between its closest point (0.5 AU) and its farthest (1.668 AU), the heliocentric distance changes by 1.168 AU over every revolution.

One full revolution takes 1.13 yr (412 days), computed from the semi-major axis of 1.084 AU.

The high eccentricity (0.538) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 3.17° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 52.3 km/s at perihelion and falls to 15.7 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

No direct size measurement is available; from an absolute magnitude of H = 20.32 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.31 km.

Observation record and orbit quality

Astrometry from 319 individual observations underpins this orbit; the fit leaves an RMS residual of 0.415 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
1.084 AU
Eccentricity
0.5383
Perihelion
0.5 AU
Aphelion
1.667517 AU
Inclination
3.17°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
1.71°

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-Jul-13 06:54 0.184503 AU
27601287 km
21.97 km/s
2029-Jun-23 20:41 0.492034 AU
73607189 km
11.85 km/s
2029-Oct-09 08:11 0.452394 AU
67677179 km
18.31 km/s
2030-Dec-28 14:24 0.431644 AU
64573090 km
17.46 km/s
2031-Apr-03 12:37 0.461945 AU
69106000 km
11.62 km/s
2032-Mar-20 16:25 0.259249 AU
38783047 km
24.31 km/s
2037-Jul-20 00:10 0.047554 AU
7113944 km
17.35 km/s
2038-Oct-26 02:16 0.478462 AU
71576943 km
20.86 km/s
2040-Jan-18 20:48 0.370276 AU
55392488 km
12.75 km/s
2040-Mar-21 10:24 0.364828 AU
54577421 km
10.49 km/s
2041-Mar-27 14:48 0.402475 AU
60209403 km
28.85 km/s
2046-Jul-24 19:52 0.118223 AU
17685907 km
13.43 km/s
2047-Nov-09 06:38 0.488278 AU
73045289 km
22.04 km/s
2049-Mar-07 22:22 0.243100 AU
36367197 km
10.30 km/s
2054-Jun-29 11:21 0.499362 AU
74703429 km
31.81 km/s
2055-Jul-22 21:58 0.261899 AU
39179588 km
10.19 km/s
2056-Nov-23 09:24 0.486030 AU
72709128 km
22.07 km/s
2058-Mar-07 22:27 0.099442 AU
14876347 km
14.11 km/s
2063-Jul-06 07:34 0.359922 AU
53843529 km
27.38 km/s
2064-Jul-08 00:56 0.383325 AU
57344623 km
10.61 km/s
2064-Sep-15 03:36 0.388985 AU
58191322 km
13.14 km/s
2065-Dec-08 10:03 0.471686 AU
70563162 km
20.86 km/s
2067-Mar-13 16:51 0.086040 AU
12871419 km
18.58 km/s
2072-Jul-12 14:46 0.207242 AU
31002897 km
22.68 km/s
2073-Jun-25 18:52 0.480698 AU
71911329 km
11.72 km/s
2073-Oct-07 02:18 0.446649 AU
66817752 km
17.81 km/s
2074-Dec-26 09:44 0.437484 AU
65446743 km
17.96 km/s
2075-Apr-05 08:03 0.473101 AU
70774863 km
11.75 km/s
2076-Mar-20 01:26 0.239313 AU
35800664 km
23.67 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
20.32

Orbit Quality

RMS
0.41501
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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