2010 AO2 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.67 AU to 1.35 AU from the Sun; one orbit takes 372.1 days. Orbit from the JPL solution of 9 October 2023.
Where is it now
- Distance from Sun
- 1.007 AU
- True anomaly
- 108.97°
- Distance from Earth
- 0.738 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
- 19h 07m 31s
- Declination
- +03° 36′ 45″
- Constellation
- Aquila
- Distance from Earth
- 0.74 AU
- Elongation from the Sun
- 69.6° — well clear of the Sun
Visible from both hemispheres.
From your location
See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.
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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
- 1.012 AU
- Eccentricity
- 0.3379
- Inclination
- 19.58°
- Orbital period
- 372.1 days
- Perihelion
- 0.67 AU
- Aphelion
- 1.354 AU
- Longitude of ascending node
- 289.91°
- Argument of periapsis
- 323.64°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 65.1 LD
- 0.1672 AU
- Tisserand (Jupiter)
- 5.922
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 52
- Data arc
- 13.75 years
- First observed
- 7 January 2010
- Last observed
- 8 October 2023
- Residual RMS
- 0.67 ″
- Solution · Otto Matic
- 9 October 2023
Visual & observation
- Absolute magnitude (H)
- 22.42
Discovery & classification
Close approaches 181 on record
Top-down view of the ecliptic, Earth at the centre, for the 2060-01-25 05:25 UTC close approach of 2010 AO2. Catalogue miss distance 178.9 LD · 6.88 × 10⁷ km. The curve is the geocentric path from 2060-01-22 to 2060-01-28, 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. At closest approach the object is south of the ecliptic. 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 |
|---|---|---|---|---|
| 2032-10-20 13:44:00 | Venus | 0.0952 AU | 37.0 LD | 18.6 km/s |
| 2035-11-08 00:29:00 | Venus | 0.0544 AU | 21.2 LD | 16.1 km/s |
| 2060-01-25 05:25:00 | Earth | 0.4596 AU | 178.9 LD | 24.9 km/s |
| 2061-01-28 01:07:00 | Earth | 0.3608 AU | 140.4 LD | 21.6 km/s |
| 2062-01-31 02:12:00 | Earth | 0.27 AU | 105.1 LD | 18.6 km/s |
| 2062-05-03 03:12:00 | Venus | 0.1097 AU | 42.7 LD | 19 km/s |
| 2063-02-01 20:00:00 | Earth | 0.1974 AU | 76.8 LD | 15.8 km/s |
| 2064-02-01 02:36:00 | Earth | 0.168 AU | 65.4 LD | 13.6 km/s |
| 2065-01-27 03:05:00 | Earth | 0.1925 AU | 74.9 LD | 12.3 km/s |
| 2065-05-20 08:17:00 | Venus | 0.0472 AU | 18.4 LD | 16.2 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