SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 NH1

2022 NH1

2022 NH1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.211 AU it takes 1.33 yr to circle the Sun.

Apollo Observations: 44
Orbital Period · P
1.33 yr
v(q)
41.6 km/s
v(Q)
17.6 km/s
Diameter · ≈
0.22 km
TJ
5.11
Eccentricity · e
0.4043

Orbit and dynamics

The path is an ellipse reaching 0.721 AU from the Sun at perihelion and 1.701 AU at aphelion, a radial span of 0.98 AU.

Applying Kepler's third law to a = 1.211 AU gives an orbital period of 1.33 yr, or about 487 days.

The high eccentricity (0.404) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 22.55° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 41.6 km/s at perihelion and falls to 17.6 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 21.02 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.22 km.

Observation record and orbit quality

The current orbit solution is based on 44 observations and has a weighted RMS residual of 0.5706 arcseconds.

Condition code U = 1 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
1.211 AU
Eccentricity
0.4043
Perihelion
0.721 AU
Aphelion
1.700607 AU
Inclination
22.55°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
274.45°

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
2030-Aug-06 06:36 0.274955 AU
41132667 km
22.90 km/s
2034-Aug-04 23:36 0.301684 AU
45131308 km
23.60 km/s
2038-Aug-03 16:30 0.329409 AU
49278951 km
24.31 km/s
2042-Aug-02 05:48 0.358576 AU
53642270 km
25.09 km/s
2046-Jul-31 16:44 0.391035 AU
58498038 km
25.96 km/s
2050-Jul-30 01:52 0.424869 AU
63559536 km
26.86 km/s
2054-Jul-28 07:29 0.460938 AU
68955348 km
27.86 km/s
2058-Jul-26 11:00 0.499379 AU
74706075 km
28.91 km/s
2064-Mar-06 01:17 0.494711 AU
74007743 km
29.15 km/s
2068-Mar-04 04:47 0.453524 AU
67846201 km
28.00 km/s
2072-Mar-02 07:44 0.409944 AU
61326727 km
26.79 km/s
2076-Feb-29 10:29 0.367726 AU
55010992 km
25.61 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
21.02

Orbit Quality

RMS
0.57057
Condition
1
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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