SpaceAtlas Space Object Data
NASA JPL SBDB · 2011 NY

2011 NY

2011 NY belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.282 AU it takes 3.45 yr to circle the Sun.

Apollo Observations: 149
Orbital Period · P
3.45 yr
v(q)
36.8 km/s
v(Q)
10.6 km/s
Diameter · ≈
0.28 km
TJ
3.37
Eccentricity · e
0.5548

Orbit and dynamics

Between its closest point (1.016 AU) and its farthest (3.548 AU), the heliocentric distance changes by 2.532 AU over every revolution.

One full revolution takes 3.45 yr (1,259 days), computed from the semi-major axis of 2.282 AU.

The high eccentricity (0.555) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 7.98° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 36.8 km/s at perihelion and falls to 10.6 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 20.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.28 km.

Observation record and orbit quality

Astrometry from 149 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3413 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
2.282 AU
Eccentricity
0.5548
Perihelion
1.016 AU
Aphelion
3.548054 AU
Inclination
7.98°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
108.02°

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-Oct-23 21:44 0.388116 AU
58061363 km
19.68 km/s
2042-Jul-07 20:59 0.249503 AU
37325046 km
15.27 km/s
2066-Oct-07 12:53 0.172113 AU
25747792 km
12.10 km/s
2073-Jun-24 11:53 0.460755 AU
68928040 km
21.88 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
20.5

Orbit Quality

RMS
0.34133
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.

Keep exploring

Explore asteroids, comets and near-Earth objects with JPL orbital data.