SpaceAtlas Space Object Data
NASA JPL SBDB · 376788

376788

376788 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.041 AU it takes 1.06 yr to circle the Sun.

Apollo Observations: 238
Orbital Period · P
1.06 yr
v(q)
50.3 km/s
v(Q)
16.9 km/s
Diameter · ≈
0.44 km
TJ
5.74
Eccentricity · e
0.496

Orbit and dynamics

Between its closest point (0.525 AU) and its farthest (1.557 AU), the heliocentric distance changes by 1.032 AU over every revolution.

One full revolution takes 1.06 yr (388 days), computed from the semi-major axis of 1.041 AU.

The high eccentricity (0.496) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 16.33° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 50.3 km/s at perihelion and falls to 16.9 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 = 19.55 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.44 km.

Observation record and orbit quality

Astrometry from 238 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5814 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
1.041 AU
Eccentricity
0.496
Perihelion
0.525 AU
Aphelion
1.557336 AU
Inclination
16.33°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
230.53°

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
2030-Dec-03 20:34 0.277298 AU
41483199 km
17.72 km/s
2031-Nov-22 08:35 0.433457 AU
64844312 km
9.13 km/s
2032-Jan-20 01:28 0.363180 AU
54331014 km
16.29 km/s
2033-Mar-02 04:24 0.456662 AU
68315689 km
21.87 km/s
2034-Apr-08 19:44 0.493325 AU
73800307 km
21.54 km/s
2035-May-26 06:07 0.439146 AU
65695246 km
12.32 km/s
2035-Aug-10 18:29 0.359451 AU
53773109 km
12.49 km/s
2036-Jul-26 19:56 0.142868 AU
21372766 km
16.05 km/s
2037-Aug-07 12:10 0.369309 AU
55247789 km
26.31 km/s
2047-Dec-01 13:32 0.289270 AU
43274205 km
18.95 km/s
2049-Jan-13 18:56 0.348889 AU
52193057 km
15.46 km/s
2050-Feb-26 11:58 0.449426 AU
67233200 km
21.52 km/s
2051-Apr-05 04:04 0.492482 AU
73674277 km
21.89 km/s
2052-May-18 12:39 0.453325 AU
67816493 km
14.10 km/s
2052-Aug-12 17:29 0.381771 AU
57112068 km
12.59 km/s
2053-Jul-26 20:13 0.152015 AU
22741081 km
15.15 km/s
2054-Aug-06 08:43 0.335320 AU
50163210 km
25.20 km/s
2064-Nov-28 14:41 0.304977 AU
45623845 km
20.10 km/s
2066-Jan-08 10:45 0.334750 AU
50077842 km
14.72 km/s
2067-Feb-22 20:27 0.441756 AU
66085725 km
21.13 km/s
2068-Mar-31 13:11 0.490855 AU
73430915 km
22.16 km/s
2069-May-12 19:36 0.464695 AU
69517452 km
15.55 km/s
2069-Aug-15 17:26 0.403173 AU
60313894 km
12.74 km/s
2070-Jul-27 06:34 0.169509 AU
25358141 km
14.29 km/s
2071-Aug-05 04:09 0.299518 AU
44807302 km
24.01 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
19.55

Orbit Quality

RMS
0.58135
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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