SpaceAtlas Space Object Data
NASA JPL SBDB · 2018 F3

Johnson

Johnson is catalogued in the JPL Small-Body Database as a comet object; the orbital elements available for it are listed below.

comet Observations: 51
Eccentricity · e
1.0

Orbit and dynamics

Between its closest point (2.483 AU) and its farthest (-305,800 AU), the heliocentric distance changes by -305,802 AU over every revolution.

The high eccentricity (1) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 105.5° carries it well above and below the ecliptic plane.

Size and surface

Neither a measured diameter nor a reliable absolute magnitude is available for Johnson, so its physical size remains unconstrained.

Observation record and orbit quality

Astrometry from 51 individual observations underpins this orbit; the fit leaves an RMS residual of 0.719 arcseconds.

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
-152900.0 AU
Eccentricity
1.0
Perihelion
2.483 AU
Aphelion
-305800.0 AU
Inclination
105.53°
Orbital Period
— yr
Epoch
2458200.5
Mean Anomaly
0.0°

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
—

Orbit Quality

RMS
0.71903
Condition
—
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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