501647 is an asteroid in the Aten orbit class. Its orbit takes it from 0.65 AU to 1.3 AU from the Sun; one orbit takes 353.4 days. Discovered 22 September 2014 by Pan-STARRS 1. Orbit from the JPL solution of 10 August 2022.
Where is it now
- Distance from Sun
- 0.935 AU
- True anomaly
- 258.04°
- Distance from Earth
- 1.11 AU
- As of
- 24 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
- 10h 44m 32s
- Declination
- +08° 17′ 30″
- Constellation
- Leo
- Distance from Earth
- 1.11 AU
- Elongation from the Sun
- 52.29° — 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
- 0.978 AU
- Eccentricity
- 0.3309
- Inclination
- 4.59°
- Orbital period
- 353.4 days
- Perihelion
- 0.655 AU
- Aphelion
- 1.302 AU
- Longitude of ascending node
- 286.23°
- Argument of periapsis
- 277.23°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 6.7 LD
- 0.0173 AU
- Tisserand (Jupiter)
- 6.135
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 271
- Data arc
- 6.37 years
- First observed
- 15 August 2014
- Last observed
- 28 December 2020
- Residual RMS
- 0.4 ″
- Solution · Otto Matic
- 10 August 2022
Visual & observation
- Absolute magnitude (H)
- 22.36
Discovery & classification
- Discovered by
- Pan-STARRS 1
- Discovery date
- 22 September 2014
- Discovery site
- Haleakala
Also known as 2014 SD224
Close approaches 199 on record
Top-down view of the ecliptic, Earth at the centre, for the 2042-08-24 04:58 UTC close approach of 501647. Catalogue miss distance 133.1 LD · 5.12 × 10⁷ km. The curve is the geocentric path from 2042-08-21 to 2042-08-27, 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. 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 |
|---|---|---|---|---|
| 2028-11-01 07:43:00 | Venus | 0.141 AU | 54.9 LD | 15.3 km/s |
| 2035-08-10 18:39:00 | Venus | 0.1117 AU | 43.5 LD | 13.5 km/s |
| 2042-05-18 08:17:00 | Venus | 0.1003 AU | 39.0 LD | 12.6 km/s |
| 2042-08-24 04:58:00 | Earth | 0.342 AU | 133.1 LD | 20.4 km/s |
| 2043-08-15 22:19:00 | Earth | 0.146 AU | 56.8 LD | 14.4 km/s |
| 2044-08-08 03:24:00 | Earth | 0.0748 AU | 29.1 LD | 8.5 km/s |
| 2045-06-24 07:42:00 | Earth | 0.256 AU | 99.6 LD | 7.5 km/s |
| 2045-09-05 18:49:00 | Earth | 0.2391 AU | 93.1 LD | 7 km/s |
| 2046-05-19 09:50:00 | Earth | 0.3315 AU | 129.0 LD | 11.4 km/s |
| 2046-10-04 13:59:00 | Earth | 0.308 AU | 119.9 LD | 8.3 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