Where is it now
- Distance from Sun
- 1.079 AU
- True anomaly
- 147.95°
- Distance from Earth
- 1.118 AU
- As of
- 19 October 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
- 17h 47m 26s
- Declination
- -11° 59′ 20″
- Constellation
- Serpens
- Distance from Earth
- 1.12 AU
- Elongation from the Sun
- 61.07° — 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
- 0.826 AU
- Eccentricity
- 0.5513
- Inclination
- 19.65°
- Orbital period
- 274.1 days
- Perihelion
- 0.371 AU
- Aphelion
- 1.281 AU
- Longitude of ascending node
- 177.86°
- Argument of periapsis
- 354.41°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 68.4 LD
- 0.1757 AU
- Tisserand (Jupiter)
- 6.926
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 628
- Data arc
- 24.13 years
- First observed
- 7 September 2000
- Last observed
- 24 October 2024
- Residual RMS
- 0.44 ″
- Solution · Otto Matic
- 25 October 2024
Physical properties
- Mean radius
- 0.42 km
- Rotation period
- 25.2 hours
Visual & observation
- Geometric albedo
- 0.025
- Absolute magnitude (H)
- 20.08
Discovery & classification
- Discovered by
- LONEOS
- Discovery date
- 5 September 2000
- Discovery site
- Anderson Mesa
Also known as 2000 RH60
Close approaches 194 on record
Top-down view of the ecliptic, Earth at the centre, for the 2027-09-10 23:22 UTC close approach of 337248. Catalogue miss distance 108.1 LD · 4.16 × 10⁷ km. The curve is the geocentric path from 2027-09-07 to 2027-09-13, 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 |
|---|---|---|---|---|
| 2027-09-10 23:22:00 | Earth | 0.2779 AU | 108.1 LD | 14.3 km/s |
| 2028-11-11 11:48:00 | Merc | 0.0881 AU | 34.3 LD | 27.9 km/s |
| 2028-11-11 11:48:00 | Mercury | 0.0881 AU | 34.3 LD | 27.9 km/s |
| 2030-09-09 20:20:00 | Earth | 0.2772 AU | 107.9 LD | 14.3 km/s |
| 2033-09-08 17:41:00 | Earth | 0.2766 AU | 107.6 LD | 14.3 km/s |
| 2034-11-09 03:19:00 | Merc | 0.0597 AU | 23.2 LD | 28.9 km/s |
| 2034-11-09 03:19:00 | Mercury | 0.0597 AU | 23.2 LD | 28.9 km/s |
| 2036-09-07 15:38:00 | Earth | 0.2756 AU | 107.3 LD | 14.3 km/s |
| 2039-09-07 14:21:00 | Earth | 0.2748 AU | 106.9 LD | 14.3 km/s |
| 2041-08-13 21:10:00 | Merc | 0.0472 AU | 18.4 LD | 26.8 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB