SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 DZ1

2019 DZ1

2019 DZ1 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.375 AU once every 1.61 yr.

Amor Observations: 37
Orbital Period · P
1.61 yr
v(q)
32.3 km/s
v(Q)
20 km/s
Diameter · ≈
0.04 km
TJ
4.73
Eccentricity · e
0.2355

Orbit and dynamics

The path is an ellipse reaching 1.052 AU from the Sun at perihelion and 1.699 AU at aphelion, a radial span of 0.647 AU.

Applying Kepler's third law to a = 1.375 AU gives an orbital period of 1.61 yr, or about 589 days.

An eccentricity of 0.235 makes the orbit moderately elongated.

The orbital plane is tilted 19.07° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32.3 km/s at perihelion and falls to 20 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 24.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

The current orbit solution is based on 37 observations and has a weighted RMS residual of 0.4049 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
1.375 AU
Eccentricity
0.2355
Perihelion
1.052 AU
Aphelion
1.698813 AU
Inclination
19.07°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
151.46°

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-Feb-19 00:45 0.423815 AU
63401847 km
9.83 km/s
2032-Aug-15 17:00 0.465552 AU
69645613 km
10.63 km/s
2040-Mar-07 04:22 0.178460 AU
26697242 km
13.10 km/s
2040-Jul-20 08:08 0.366267 AU
54792832 km
9.11 km/s
2048-Mar-04 08:49 0.246255 AU
36839213 km
9.90 km/s
2061-Mar-03 14:56 0.317656 AU
47520651 km
16.78 km/s
2061-Aug-02 20:57 0.394717 AU
59048777 km
9.85 km/s
2069-Mar-08 23:59 0.121080 AU
18113343 km
10.39 km/s
2077-Feb-12 10:52 0.435330 AU
65124469 km
9.63 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
24.6

Orbit Quality

RMS
0.40488
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.

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