2015 CJ13 is an asteroid in the Aten orbit class. Its orbit takes it from 0.61 AU to 1.35 AU from the Sun; one orbit takes 354 days. Orbit from the JPL solution of 14 August 2022.
Where is it now
- Distance from Sun
- 0.862 AU
- True anomaly
- 265.91°
- Distance from Earth
- 1.708 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
- 12h 34m 01s
- Declination
- -07° 33′ 33″
- Constellation
- Virgo
- Distance from Earth
- 1.71 AU
- Elongation from the Sun
- 21.29° — 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.
Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.
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
- 0.979 AU
- Eccentricity
- 0.3796
- Inclination
- 19.01°
- Orbital period
- 354 days
- Perihelion
- 0.608 AU
- Aphelion
- 1.351 AU
- Longitude of ascending node
- 324.8°
- Argument of periapsis
- 295.89°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 4.1 LD
- 0.0106 AU
- Tisserand (Jupiter)
- 6.072
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 89
- Data arc
- 10 days
- First observed
- 8 February 2015
- Last observed
- 18 February 2015
- Residual RMS
- 0.27 ″
- Solution · Otto Matic
- 14 August 2022
Visual & observation
- Absolute magnitude (H)
- 24.05
Discovery & classification
Close approaches 52 on record
Top-down view of the ecliptic, Earth at the centre, for the 2036-10-14 16:04 UTC close approach of 2015 CJ13. Catalogue miss distance 165.5 LD · 6.36 × 10⁷ km. The curve is the geocentric path from 2036-10-11 to 2036-10-17, 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 |
|---|---|---|---|---|
| 2032-10-31 23:52:00 | Venus | 0.0535 AU | 20.8 LD | 16.2 km/s |
| 2036-10-14 16:04:00 | Earth | 0.4253 AU | 165.5 LD | 24.9 km/s |
| 2037-10-03 19:57:00 | Earth | 0.282 AU | 109.8 LD | 19.8 km/s |
| 2038-09-19 20:02:00 | Earth | 0.2094 AU | 81.5 LD | 15.7 km/s |
| 2039-08-15 05:42:00 | Venus | 0.0628 AU | 24.4 LD | 19 km/s |
| 2045-02-10 21:05:00 | Earth | 0.2552 AU | 99.3 LD | 11.1 km/s |
| 2046-02-16 17:27:00 | Earth | 0.0759 AU | 29.5 LD | 13.5 km/s |
| 2047-02-12 07:24:00 | Earth | 0.1106 AU | 43.0 LD | 18 km/s |
| 2048-02-05 16:44:00 | Earth | 0.2955 AU | 115.0 LD | 23.2 km/s |
| 2049-01-28 10:40:00 | Earth | 0.4772 AU | 185.7 LD | 28.7 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