SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 DQ37

2017 DQ37

2017 DQ37 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 2.069 AU once every 2.98 yr.

Amor Observations: 173
Orbital Period · P
2.98 yr
v(q)
36 km/s
v(Q)
11.9 km/s
Diameter · ≈
0.54 km
TJ
3.56
Eccentricity · e
0.5035

Orbit and dynamics

The path is an ellipse reaching 1.027 AU from the Sun at perihelion and 3.111 AU at aphelion, a radial span of 2.084 AU.

Applying Kepler's third law to a = 2.069 AU gives an orbital period of 2.98 yr, or about 1,087 days.

The high eccentricity (0.503) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 17.07° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 36 km/s at perihelion and falls to 11.9 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 = 19.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.54 km.

Observation record and orbit quality

The current orbit solution is based on 173 observations and has a weighted RMS residual of 0.5167 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
2.069 AU
Eccentricity
0.5035
Perihelion
1.027 AU
Aphelion
3.110741 AU
Inclination
17.07°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
351.46°

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
2035-May-05 04:41 0.199232 AU
29804689 km
10.23 km/s
2038-Apr-28 14:46 0.145676 AU
21792862 km
11.89 km/s
2041-Apr-21 16:03 0.174587 AU
26117874 km
14.66 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
19.1

Orbit Quality

RMS
0.51666
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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