Where is it now
- Distance from Sun
- 1.139 AU
- True anomaly
- 185.9°
- Distance from Earth
- 1.756 AU
- As of
- 20 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
- 16h 14m 40s
- Declination
- -20° 42′ 35″
- Constellation
- Scorpius
- Distance from Earth
- 1.76 AU
- Elongation from the Sun
- 37.27° — near the Sun — look low at dusk or dawn
Favours the southern hemisphere; low or below the horizon from far north.
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
- 0.902 AU
- Eccentricity
- 0.2657
- Inclination
- 10.53°
- Orbital period
- 312.7 days
- Perihelion
- 0.662 AU
- Aphelion
- 1.141 AU
- Longitude of ascending node
- 101.74°
- Argument of periapsis
- 349.13°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 37.1 LD
- 0.0954 AU
- Tisserand (Jupiter)
- 6.56
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 995
- Data arc
- 19.93 years
- First observed
- 15 May 2004
- Last observed
- 20 April 2024
- Residual RMS
- 0.37 ″
- Solution · Otto Matic
- 2 January 2026
Physical properties
- Mean radius
- 0.55 km
- Rotation period
- 10.76 hours
Visual & observation
- Geometric albedo
- 0.028
- Absolute magnitude (H)
- 19.37
Discovery & classification
- Discovered by
- CSS
- Discovery date
- 15 May 2004
- Discovery site
- Catalina
Also known as 2004 JX20
Close approaches 84 on record
Top-down view of the ecliptic, Earth at the centre, for the 2028-06-10 09:52 UTC close approach of 464798. Catalogue miss distance 54.5 LD · 2.1 × 10⁷ km. The curve is the geocentric path from 2028-06-07 to 2028-06-13, 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 |
|---|---|---|---|---|
| 2028-06-10 09:52:00 | Earth | 0.1401 AU | 54.5 LD | 7.2 km/s |
| 2030-09-13 05:35:00 | Venus | 0.0883 AU | 34.4 LD | 11.5 km/s |
| 2034-06-15 18:28:00 | Earth | 0.1379 AU | 53.7 LD | 7.2 km/s |
| 2034-12-05 16:21:00 | Venus | 0.0609 AU | 23.7 LD | 7.6 km/s |
| 2039-02-13 18:31:00 | Venus | 0.1089 AU | 42.4 LD | 9.9 km/s |
| 2040-06-20 07:40:00 | Earth | 0.1337 AU | 52.0 LD | 7.2 km/s |
| 2046-06-28 01:02:00 | Earth | 0.1272 AU | 49.5 LD | 7.2 km/s |
| 2052-07-03 16:36:00 | Earth | 0.1205 AU | 46.9 LD | 7.2 km/s |
| 2054-08-26 19:25:00 | Venus | 0.0388 AU | 15.1 LD | 7.9 km/s |
| 2058-07-09 01:42:00 | Earth | 0.1142 AU | 44.4 LD | 7.2 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