515767
Add to an observing list or journal →515767 (2015 JA2)
515767 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.67 AU to 1.39 AU from the Sun; one orbit takes 384 days. Discovered 13 May 2015 by Pan-STARRS 2. Orbit from the JPL solution of 28 March 2026.
Where is it now
- Distance from Sun
- 1.36 AU
- True anomaly
- 197.91°
- Distance from Earth
- 2.318 AU
- As of
- 3 November 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
- 14h 26m 46s
- Declination
- -04° 29′ 40″
- Constellation
- Virgo
- Distance from Earth
- 2.32 AU
- Elongation from the Sun
- 11.43° — too close to the Sun to observe
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
- 1.034 AU
- Eccentricity
- 0.3491
- Inclination
- 16.42°
- Orbital period
- 384 days
- Perihelion
- 0.673 AU
- Aphelion
- 1.395 AU
- Longitude of ascending node
- 126.6°
- Argument of periapsis
- 246.26°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 16.6 LD
- 0.0426 AU
- Tisserand (Jupiter)
- 5.834
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 172
- Data arc
- 4.76 years
- First observed
- 13 May 2015
- Last observed
- 14 February 2020
- Residual RMS
- 0.61 ″
- Solution · Otto Matic
- 28 March 2026
Physical properties
- Rotation period
- 0.98 hours
Visual & observation
- Absolute magnitude (H)
- 21.18
Discovery & classification
- Discovered by
- Pan-STARRS 2
- Discovery date
- 13 May 2015
- Discovery site
- Haleakala
Also known as 2015 JA2
Close approaches 50 on record
Top-down view of the ecliptic, Earth at the centre, for the 2035-07-15 16:25 UTC close approach of 515767. Catalogue miss distance 69.5 LD · 2.67 × 10⁷ km. The curve is the geocentric path from 2035-07-12 to 2035-07-18, 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 |
|---|---|---|---|---|
| 2035-07-15 16:25:00 | Earth | 0.1787 AU | 69.5 LD | 12.2 km/s |
| 2039-01-23 04:23:00 | Earth | 0.193 AU | 75.1 LD | 10.1 km/s |
| 2040-01-24 04:41:00 | Earth | 0.131 AU | 51.0 LD | 16.5 km/s |
| 2040-11-18 02:20:00 | Venus | 0.1305 AU | 50.8 LD | 10.1 km/s |
| 2048-03-22 03:36:00 | Venus | 0.0275 AU | 10.7 LD | 13.4 km/s |
| 2055-06-29 16:08:00 | Earth | 0.1616 AU | 62.9 LD | 14.6 km/s |
| 2060-01-20 04:25:00 | Earth | 0.0722 AU | 28.1 LD | 12.1 km/s |
| 2066-02-05 06:08:00 | Venus | 0.1194 AU | 46.5 LD | 10.2 km/s |
| 2073-06-07 16:30:00 | Venus | 0.0959 AU | 37.3 LD | 16.3 km/s |
| 2076-07-03 03:21:00 | Earth | 0.1532 AU | 59.6 LD | 13.6 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)
- orbital elements: JPL SBDB