2022 AO is an asteroid in the Apollo orbit class. Its orbit takes it from 0.84 AU to 1.22 AU from the Sun; one orbit takes 381.3 days. Orbit from the JPL solution of 18 December 2022.
Where is it now
- Distance from Sun
- 1.133 AU
- True anomaly
- 131.04°
- Distance from Earth
- 0.66 AU
- As of
- 3 November 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 20h 45m 21s
- Declination
- -28° 46′ 39″
- Constellation
- Microscopium
- Distance from Earth
- 0.66 AU
- Elongation from the Sun
- 84.04° — well clear of the Sun
Favours the southern hemisphere; low or below the horizon from far north.
From your location
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 1.029 AU
- Eccentricity
- 0.1886
- Inclination
- 6.09°
- Orbital period
- 381.3 days
- Perihelion
- 0.835 AU
- Aphelion
- 1.223 AU
- Longitude of ascending node
- 89.93°
- Argument of periapsis
- 145.35°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 32.9 LD
- 0.0846 AU
- Tisserand (Jupiter)
- 5.925
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 69
- Data arc
- 347 days
- First observed
- 4 January 2022
- Last observed
- 17 December 2022
- Residual RMS
- 0.41 ″
- Solution · Otto Matic
- 18 December 2022
Visual & observation
- Absolute magnitude (H)
- 23.95
Discovery & classification
Close approaches 130 on record
Top-down view of the ecliptic, Earth at the centre, for the 2044-01-28 15:04 UTC close approach of 2022 AO. Catalogue miss distance 159.4 LD · 6.13 × 10⁷ km. The curve is the geocentric path from 2044-01-25 to 2044-01-31, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2040-01-29 14:07:00 | Venus | 0.1161 AU | 45.2 LD | 1.3 km/s |
| 2044-01-28 15:04:00 | Earth | 0.4097 AU | 159.4 LD | 18.3 km/s |
| 2045-02-06 23:38:00 | Earth | 0.1519 AU | 59.1 LD | 10 km/s |
| 2046-01-15 17:58:00 | Earth | 0.1511 AU | 58.8 LD | 5.2 km/s |
| 2046-04-02 00:35:00 | Earth | 0.1656 AU | 64.4 LD | 4.9 km/s |
| 2046-12-01 09:03:00 | Earth | 0.2365 AU | 92.0 LD | 6.4 km/s |
| 2047-06-10 12:53:00 | Earth | 0.1717 AU | 66.8 LD | 6.7 km/s |
| 2047-10-19 12:04:00 | Earth | 0.2265 AU | 88.2 LD | 5.4 km/s |
| 2048-08-16 05:55:00 | Earth | 0.09 AU | 35.0 LD | 6.6 km/s |
| 2049-09-03 13:42:00 | Earth | 0.2936 AU | 114.3 LD | 14.4 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB