SpaceAtlas Space Object Data
NASA JPL SBDB · 497025

497025

497025 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.053 AU it takes 1.08 yr to circle the Sun.

Apollo Observations: 122
Orbital Period · P
1.08 yr
v(q)
41 km/s
v(Q)
20.6 km/s
Diameter · ≈
0.26 km
TJ
5.77
Eccentricity · e
0.3316

Orbit and dynamics

Between its closest point (0.704 AU) and its farthest (1.402 AU), the heliocentric distance changes by 0.698 AU over every revolution.

One full revolution takes 1.08 yr (395 days), computed from the semi-major axis of 1.053 AU.

An eccentricity of 0.332 makes the orbit moderately elongated.

The orbital plane is tilted 11.28° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 41 km/s at perihelion and falls to 20.6 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 = 20.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.26 km.

Observation record and orbit quality

Astrometry from 122 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6119 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
1.053 AU
Eccentricity
0.3316
Perihelion
0.704 AU
Aphelion
1.402175 AU
Inclination
11.28°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
298.69°

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-Sep-08 10:57 0.440417 AU
65885407 km
23.22 km/s
2030-Sep-24 18:54 0.084678 AU
12667678 km
9.64 km/s
2031-Aug-06 13:05 0.385228 AU
57629293 km
9.10 km/s
2032-Jan-14 04:27 0.307593 AU
46015293 km
11.47 km/s
2032-Jun-17 00:18 0.420481 AU
62903125 km
8.36 km/s
2033-Apr-06 01:06 0.122276 AU
18292158 km
10.73 km/s
2034-May-07 22:41 0.489218 AU
73185962 km
24.17 km/s
2043-Sep-22 09:55 0.118976 AU
17798591 km
13.54 km/s
2044-Aug-21 15:17 0.325878 AU
48750658 km
8.68 km/s
2044-Dec-19 11:59 0.313277 AU
46865552 km
10.43 km/s
2045-Jul-03 16:26 0.435274 AU
65116028 km
8.99 km/s
2046-Mar-14 15:40 0.184046 AU
27532930 km
9.40 km/s
2047-Apr-30 14:38 0.353075 AU
52819222 km
20.00 km/s
2056-Sep-15 21:50 0.265721 AU
39751364 km
17.99 km/s
2057-Sep-10 07:47 0.229352 AU
34310508 km
7.96 km/s
2058-Jul-19 15:37 0.425738 AU
63689483 km
9.27 km/s
2059-Feb-13 05:13 0.260113 AU
38912343 km
10.78 km/s
2059-May-20 02:05 0.362031 AU
54159076 km
6.59 km/s
2060-Apr-20 13:26 0.209944 AU
31407171 km
15.38 km/s
2069-Sep-08 08:11 0.447414 AU
66932237 km
23.43 km/s
2070-Sep-25 00:06 0.081281 AU
12159473 km
9.79 km/s
2071-Aug-07 08:41 0.382818 AU
57268779 km
9.10 km/s
2072-Jan-13 08:04 0.308240 AU
46112101 km
11.47 km/s
2072-Jun-18 02:04 0.421470 AU
63051001 km
8.42 km/s
2073-Apr-05 12:29 0.123547 AU
18482419 km
10.58 km/s
2074-May-07 21:56 0.484174 AU
72431473 km
24.02 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
20.7

Orbit Quality

RMS
0.61185
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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