SpaceAtlas Space Object Data
NASA JPL SBDB · 1995 NA

1995 NA

1995 NA is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.683 AU once every 2.18 yr.

Amor Observations: 8
Orbital Period · P
2.18 yr
v(q)
34.6 km/s
v(Q)
15.2 km/s
Diameter · ≈
0.08 km
TJ
4.11
Eccentricity · e
0.3895

Orbit and dynamics

The path is an ellipse reaching 1.027 AU from the Sun at perihelion and 2.339 AU at aphelion, a radial span of 1.312 AU.

Applying Kepler's third law to a = 1.683 AU gives an orbital period of 2.18 yr, or about 797 days.

An eccentricity of 0.39 makes the orbit moderately elongated.

The orbital plane is tilted 12.77° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.6 km/s at perihelion and falls to 15.2 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 = 23.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

The current orbit solution is based on 8 observations and has a weighted RMS residual of 0.8848 arcseconds.

Condition code U = 9 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.683 AU
Eccentricity
0.3895
Perihelion
1.027 AU
Aphelion
2.338528 AU
Inclination
12.77°
Orbital Period
— yr
Epoch
2449904.5
Mean Anomaly
347.9°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
23.2

Orbit Quality

RMS
0.88477
Condition
9
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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