309662 is an asteroid in the Aten orbit class. Its orbit takes it from 0.77 AU to 1.19 AU from the Sun; one orbit takes 355.1 days. Discovered 1 March 2008 by LINEAR. Orbit from the JPL solution of 14 April 2021.
Where is it now
- Distance from Sun
- 1.022 AU
- True anomaly
- 247.09°
- Distance from Earth
- 1.98 AU
- As of
- 2 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
- 13h 49m 56s
- Declination
- -16° 58′ 24″
- Constellation
- Virgo
- Distance from Earth
- 1.98 AU
- Elongation from the Sun
- 10.62° — too close to the Sun to observe
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
- 0.981 AU
- Eccentricity
- 0.2119
- Inclination
- 16.16°
- Orbital period
- 355.1 days
- Perihelion
- 0.773 AU
- Aphelion
- 1.189 AU
- Longitude of ascending node
- 343.54°
- Argument of periapsis
- 332.52°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 53.7 LD
- 0.1381 AU
- Tisserand (Jupiter)
- 6.117
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 399
- Data arc
- 4.99 years
- First observed
- 1 March 2008
- Last observed
- 26 February 2013
- Residual RMS
- 0.4 ″
- Solution · Otto Matic
- 14 April 2021
Visual & observation
- Absolute magnitude (H)
- 19.87
Discovery & classification
- Discovered by
- LINEAR
- Discovery date
- 1 March 2008
- Discovery site
- Socorro
Also known as 2008 EE
Close approaches 143 on record
Top-down view of the ecliptic, Earth at the centre, for the 2038-11-30 01:16 UTC close approach of 309662. Catalogue miss distance 182.9 LD · 7.03 × 10⁷ km. The curve is the geocentric path from 2038-11-27 to 2038-12-03, 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 north 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 |
|---|---|---|---|---|
| 2037-10-15 01:32:00 | Venus | 0.0931 AU | 36.2 LD | 11.8 km/s |
| 2038-11-30 01:16:00 | Earth | 0.47 AU | 182.9 LD | 19.4 km/s |
| 2039-11-17 07:43:00 | Earth | 0.3381 AU | 131.6 LD | 14.8 km/s |
| 2040-10-27 14:42:00 | Earth | 0.2418 AU | 94.1 LD | 11.8 km/s |
| 2041-10-03 03:10:00 | Earth | 0.2027 AU | 78.9 LD | 11.3 km/s |
| 2042-01-07 22:21:00 | Earth | 0.3022 AU | 117.6 LD | 7.8 km/s |
| 2042-09-08 20:06:00 | Earth | 0.2177 AU | 84.7 LD | 11.6 km/s |
| 2043-02-05 13:30:00 | Earth | 0.2672 AU | 104.0 LD | 9.2 km/s |
| 2043-08-15 13:29:00 | Earth | 0.2594 AU | 101.0 LD | 11.8 km/s |
| 2044-02-24 23:04:00 | Earth | 0.2116 AU | 82.3 LD | 9.4 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