Where is it now
- Distance from Sun
- 0.834 AU
- True anomaly
- 144.7°
- Distance from Earth
- 1.35 AU
- As of
- 15 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
- 11h 16m 58s
- Declination
- +12° 03′ 56″
- Constellation
- Leo
- Distance from Earth
- 1.35 AU
- Elongation from the Sun
- 38.2° — near the Sun — look low at dusk or dawn
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
- 0.663 AU
- Eccentricity
- 0.5875
- Inclination
- 20.37°
- Orbital period
- 197.1 days
- Perihelion
- 0.273 AU
- Aphelion
- 1.052 AU
- Longitude of ascending node
- 85.89°
- Argument of periapsis
- 248.18°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 87.5 LD
- 0.2248 AU
- Tisserand (Jupiter)
- 8.392
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 155
- Data arc
- 16.2 years
- First observed
- 9 February 2008
- Last observed
- 21 April 2024
- Residual RMS
- 0.58 ″
- Solution · Otto Matic
- 22 April 2024
Physical properties
- Mean radius
- 0.16 km
Visual & observation
- Geometric albedo
- 0.355
- Absolute magnitude (H)
- 19.25
Discovery & classification
- Discovered by
- Mt. Lemmon Survey
- Discovery date
- 9 February 2008
- Discovery site
- Mount Lemmon
Also known as 2008 CH116
Close approaches 290 on record
Top-down view of the ecliptic, Earth at the centre, for the 2029-03-18 22:07 UTC close approach of 613939. Catalogue miss distance 141.4 LD · 5.43 × 10⁷ km. The curve is the geocentric path from 2029-03-15 to 2029-03-21, 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 |
|---|---|---|---|---|
| 2029-03-18 22:07:00 | Earth | 0.3632 AU | 141.4 LD | 18.7 km/s |
| 2029-11-08 21:19:00 | Mercury | 0.0794 AU | 30.9 LD | 31.3 km/s |
| 2029-11-08 21:19:00 | Merc | 0.0794 AU | 30.9 LD | 31.3 km/s |
| 2030-01-18 04:01:00 | Earth | 0.253 AU | 98.4 LD | 14.4 km/s |
| 2030-05-04 03:55:00 | Earth | 0.4906 AU | 190.9 LD | 12.8 km/s |
| 2031-02-04 15:46:00 | Earth | 0.3998 AU | 155.6 LD | 27.9 km/s |
| 2032-08-12 06:39:00 | Mercury | 0.0973 AU | 37.9 LD | 23.2 km/s |
| 2032-08-12 06:39:00 | Merc | 0.0973 AU | 37.9 LD | 23.2 km/s |
| 2034-04-24 10:27:00 | Venus | 0.1135 AU | 44.2 LD | 19.4 km/s |
| 2036-03-20 11:55:00 | Earth | 0.3475 AU | 135.2 LD | 16 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)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB