SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 FB2

2019 FB2

2019 FB2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.924 AU and a period of 0.89 yr.

Aten Observations: 74
Orbital Period · P
0.89 yr
v(q)
45.2 km/s
v(Q)
21.2 km/s
Diameter · ≈
0.02 km
TJ
6.4
Eccentricity · e
0.3615

Orbit and dynamics

Between its closest point (0.59 AU) and its farthest (1.258 AU), the heliocentric distance changes by 0.668 AU over every revolution.

One full revolution takes 0.89 yr (324 days), computed from the semi-major axis of 0.924 AU.

An eccentricity of 0.361 makes the orbit moderately elongated.

The orbital plane is tilted 11.29° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 45.2 km/s at perihelion and falls to 21.2 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 = 26.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 74 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4158 arcseconds.

Condition code U = 6 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
0.9237 AU
Eccentricity
0.3615
Perihelion
0.59 AU
Aphelion
1.257618 AU
Inclination
11.29°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
119.58°

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-Mar-29 13:52 0.034280 AU
5128247 km
10.36 km/s
2027-Dec-03 12:04 0.416697 AU
62336978 km
15.44 km/s
2028-Sep-01 01:08 0.243608 AU
36443184 km
9.20 km/s
2035-Apr-02 22:55 0.126280 AU
18891195 km
8.64 km/s
2035-Nov-21 23:06 0.412349 AU
61686466 km
15.70 km/s
2036-Aug-12 14:25 0.193783 AU
28989464 km
8.93 km/s
2042-Apr-14 03:10 0.417737 AU
62492505 km
24.03 km/s
2043-Apr-17 22:38 0.213322 AU
31912446 km
8.44 km/s
2043-Nov-09 07:58 0.400317 AU
59886614 km
15.45 km/s
2044-Aug-01 20:29 0.175875 AU
26310461 km
11.27 km/s
2050-Apr-09 13:49 0.314140 AU
46994694 km
20.81 km/s
2051-Jan-23 23:27 0.348179 AU
52086779 km
9.64 km/s
2051-May-04 13:20 0.271504 AU
40616386 km
8.72 km/s
2051-Oct-27 06:33 0.380894 AU
56980915 km
14.69 km/s
2052-Jul-26 06:03 0.203952 AU
30510790 km
14.21 km/s
2058-Apr-05 06:47 0.210245 AU
31452173 km
17.68 km/s
2059-Jan-06 07:12 0.386735 AU
57854665 km
12.26 km/s
2059-May-20 00:48 0.302752 AU
45291010 km
8.75 km/s
2059-Oct-13 19:58 0.354062 AU
52966896 km
13.51 km/s
2060-Jul-20 17:05 0.271676 AU
40642194 km
17.24 km/s
2066-Apr-01 09:34 0.101939 AU
15249886 km
14.53 km/s
2066-Dec-22 14:26 0.408111 AU
61052545 km
14.05 km/s
2067-Jun-05 21:39 0.308916 AU
46213138 km
8.41 km/s
2067-Sep-28 17:51 0.317459 AU
47491234 km
11.88 km/s
2068-Jul-15 10:30 0.358807 AU
53676828 km
20.34 km/s
2074-Mar-29 20:16 0.005058 AU
756658 km
11.79 km/s
2074-Dec-13 00:41 0.411380 AU
61541614 km
14.81 km/s
2075-Jun-18 16:27 0.302839 AU
45304014 km
7.92 km/s
2075-Sep-19 23:19 0.291283 AU
43575255 km
10.79 km/s
2076-Jul-14 15:15 0.378664 AU
56647331 km
21.43 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
26.5

Orbit Quality

RMS
0.41584
Condition
6
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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