487583 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.71 AU to 1.34 AU from the Sun; one orbit takes 378.8 days. Discovered 20 March 2015 by Pan-STARRS 1. Orbit from the JPL solution of 12 August 2024.
Where is it now
- Distance from Sun
- 1.321 AU
- True anomaly
- 195.11°
- Distance from Earth
- 2.311 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 41m 47s
- Declination
- -18° 08′ 17″
- Constellation
- Libra
- Distance from Earth
- 2.31 AU
- Elongation from the Sun
- 2.86° — too close to the Sun to observe
Favours the southern hemisphere; low or below the horizon from far north.
From your location
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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
- 1.025 AU
- Eccentricity
- 0.3095
- Inclination
- 4.43°
- Orbital period
- 378.8 days
- Perihelion
- 0.707 AU
- Aphelion
- 1.342 AU
- Longitude of ascending node
- 291.18°
- Argument of periapsis
- 98.21°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 4.4 LD
- 0.0113 AU
- Tisserand (Jupiter)
- 5.92
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 132
- Data arc
- 6.67 years
- First observed
- 26 June 2010
- Last observed
- 26 February 2017
- Residual RMS
- 0.59 ″
- Solution · Otto Matic
- 12 August 2024
Visual & observation
- Absolute magnitude (H)
- 22.19
Discovery & classification
- Discovered by
- Pan-STARRS 1
- Discovery date
- 20 March 2015
- Discovery site
- Haleakala
Also known as 2015 FJ36
Close approaches 168 on record
Top-down view of the ecliptic, Earth at the centre, for the 2037-06-19 11:42 UTC close approach of 487583. Catalogue miss distance 142.3 LD · 5.47 × 10⁷ km. The curve is the geocentric path from 2037-06-16 to 2037-06-22, 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 |
|---|---|---|---|---|
| 2037-06-19 11:42:00 | Earth | 0.3656 AU | 142.3 LD | 20.2 km/s |
| 2038-06-29 15:51:00 | Earth | 0.1429 AU | 55.6 LD | 13.6 km/s |
| 2039-07-08 19:10:00 | Earth | 0.0829 AU | 32.3 LD | 7.2 km/s |
| 2039-09-20 03:45:00 | Venus | 0.0928 AU | 36.1 LD | 6 km/s |
| 2040-05-31 23:32:00 | Earth | 0.2659 AU | 103.5 LD | 6.8 km/s |
| 2040-09-05 07:18:00 | Earth | 0.2551 AU | 99.3 LD | 8.4 km/s |
| 2041-05-03 06:49:00 | Earth | 0.3376 AU | 131.4 LD | 8.1 km/s |
| 2041-10-14 05:09:00 | Earth | 0.2952 AU | 114.9 LD | 10.6 km/s |
| 2042-04-09 07:01:00 | Earth | 0.3449 AU | 134.2 LD | 8.2 km/s |
| 2042-11-19 22:34:00 | Earth | 0.269 AU | 104.7 LD | 9.5 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