SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 BF5

2020 BF5

2020 BF5 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.98 AU and a period of 0.97 yr.

Aten Observations: 45
Orbital Period · P
0.97 yr
v(q)
39.3 km/s
v(Q)
23.1 km/s
Diameter · ≈
0.04 km
TJ
6.14
Eccentricity · e
0.2599

Orbit and dynamics

Between its closest point (0.725 AU) and its farthest (1.234 AU), the heliocentric distance changes by 0.509 AU over every revolution.

One full revolution takes 0.97 yr (354 days), computed from the semi-major axis of 0.98 AU.

An eccentricity of 0.26 makes the orbit moderately elongated.

The orbital plane is tilted 7.27° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 39.3 km/s at perihelion and falls to 23.1 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 = 25 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 45 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5696 arcseconds.

Condition code U = 5 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
0.9798 AU
Eccentricity
0.2599
Perihelion
0.725 AU
Aphelion
1.23445 AU
Inclination
7.27°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
92.96°

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
2044-Oct-18 06:20 0.418794 AU
62650661 km
21.19 km/s
2045-Oct-09 22:46 0.241821 AU
36175933 km
15.49 km/s
2046-Sep-30 14:11 0.109479 AU
16377787 km
9.90 km/s
2047-Sep-03 16:23 0.162387 AU
24292764 km
6.54 km/s
2048-Jul-25 10:05 0.250619 AU
37491998 km
9.11 km/s
2048-Nov-23 21:52 0.261548 AU
39126997 km
7.01 km/s
2049-Jun-25 20:20 0.293314 AU
43879211 km
10.32 km/s
2049-Dec-20 21:44 0.264604 AU
39584132 km
7.60 km/s
2050-May-28 11:08 0.297736 AU
44540607 km
9.89 km/s
2051-Jan-16 09:40 0.209036 AU
31271308 km
7.14 km/s
2051-Apr-24 18:08 0.254129 AU
38017203 km
7.37 km/s
2052-Feb-15 22:20 0.084693 AU
12669953 km
6.84 km/s
2053-Feb-17 21:00 0.083843 AU
12542738 km
11.41 km/s
2054-Feb-12 01:15 0.259551 AU
38828264 km
16.96 km/s
2055-Feb-05 02:49 0.441034 AU
65977707 km
22.58 km/s
2076-Oct-19 22:32 0.455430 AU
68131318 km
22.23 km/s
2077-Oct-11 22:33 0.281678 AU
42138357 km
16.69 km/s
2078-Oct-03 06:15 0.131119 AU
19615195 km
11.21 km/s
2079-Sep-16 20:49 0.132870 AU
19877004 km
6.49 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
25.0

Orbit Quality

RMS
0.56957
Condition
5
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.

Keep exploring

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