SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 LD5

2019 LD5

2019 LD5 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.898 AU and a period of 0.85 yr.

Aten Observations: 56
Orbital Period · P
0.85 yr
v(q)
44.2 km/s
v(Q)
22.3 km/s
Diameter · ≈
0.07 km
TJ
6.58
Eccentricity · e
0.3284

Orbit and dynamics

The path is an ellipse reaching 0.603 AU from the Sun at perihelion and 1.193 AU at aphelion, a radial span of 0.59 AU.

Applying Kepler's third law to a = 0.898 AU gives an orbital period of 0.85 yr, or about 311 days.

An eccentricity of 0.328 makes the orbit moderately elongated.

The orbital plane is tilted 5.49° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 44.2 km/s at perihelion and falls to 22.3 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 = 23.39 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.07 km.

Observation record and orbit quality

The current orbit solution is based on 56 observations and has a weighted RMS residual of 0.513 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
0.898 AU
Eccentricity
0.3284
Perihelion
0.603 AU
Aphelion
1.192903 AU
Inclination
5.49°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
313.18°

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-Jan-11 20:13 0.318866 AU
47701703 km
9.89 km/s
2030-May-17 18:24 0.181781 AU
27194103 km
7.50 km/s
2030-Sep-15 19:30 0.317572 AU
47508059 km
9.05 km/s
2035-Apr-02 08:09 0.297706 AU
44536183 km
17.73 km/s
2035-Dec-07 11:57 0.375242 AU
56135341 km
13.86 km/s
2036-Jun-30 16:10 0.096440 AU
14427271 km
7.40 km/s
2041-Mar-25 16:21 0.082770 AU
12382274 km
9.80 km/s
2041-Nov-06 09:25 0.384399 AU
57505347 km
14.32 km/s
2042-Jul-04 01:33 0.188992 AU
28272769 km
14.17 km/s
2047-Feb-10 13:09 0.258361 AU
38650300 km
5.04 km/s
2047-Apr-27 02:25 0.165837 AU
24808900 km
7.32 km/s
2047-Oct-05 16:31 0.353956 AU
52951002 km
11.72 km/s
2048-Jun-24 00:06 0.427870 AU
64008483 km
21.82 km/s
2052-Apr-07 00:07 0.423117 AU
63297398 km
21.78 km/s
2052-Dec-23 13:10 0.354312 AU
53004328 km
12.37 km/s
2053-Jun-08 09:53 0.159434 AU
23850950 km
7.22 km/s
2058-Mar-28 13:48 0.180128 AU
26946715 km
13.86 km/s
2058-Nov-22 09:12 0.384276 AU
57486858 km
14.45 km/s
2059-Jul-07 04:16 0.086208 AU
12896543 km
10.29 km/s
2064-Apr-03 01:24 0.109770 AU
16421417 km
7.14 km/s
2064-Oct-21 23:54 0.375277 AU
56140610 km
13.45 km/s
2065-Jun-29 09:47 0.306402 AU
45837064 km
17.97 km/s
2070-Jan-10 12:12 0.322035 AU
48175710 km
10.08 km/s
2070-May-19 05:40 0.181531 AU
27156618 km
7.51 km/s
2070-Sep-14 09:23 0.314152 AU
46996450 km
8.82 km/s
2075-Apr-02 05:06 0.291136 AU
43553400 km
17.52 km/s
2075-Dec-06 20:44 0.375890 AU
56232372 km
13.89 km/s
2076-Jul-01 10:03 0.094234 AU
14097151 km
7.49 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
23.39

Orbit Quality

RMS
0.51299
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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