2024 RM12 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.91 AU to 1.12 AU from the Sun; one orbit takes 374.4 days. Orbit from the JPL solution of 29 May 2026.
Where is it now
- Distance from Sun
- 1.123 AU
- True anomaly
- 184.3°
- Distance from Earth
- 0.516 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
- 20h 45m 03s
- Declination
- -05° 04′ 57″
- Constellation
- Aquarius
- Distance from Earth
- 0.52 AU
- Elongation from the Sun
- 90.58° — well clear of the Sun
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
- 1.017 AU
- Eccentricity
- 0.1053
- Inclination
- 8.5°
- Orbital period
- 374.4 days
- Perihelion
- 0.91 AU
- Aphelion
- 1.124 AU
- Longitude of ascending node
- 332.72°
- Argument of periapsis
- 217.83°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 21.0 LD
- 0.054 AU
- Tisserand (Jupiter)
- 5.988
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 22
- Data arc
- 30 days
- First observed
- 1 September 2024
- Last observed
- 1 October 2024
- Residual RMS
- 0.49 ″
- Solution · Otto Matic
- 29 May 2026
Visual & observation
- Absolute magnitude (H)
- 25.16
Discovery & classification
Close approaches 19 on record
Top-down view of the ecliptic, Earth at the centre, for the 2062-01-23 14:08 UTC close approach of 2024 RM12. Catalogue miss distance 50.9 LD · 1.95 × 10⁷ km. The curve is the geocentric path from 2062-01-20 to 2062-01-26, 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 |
|---|---|---|---|---|
| 2062-01-23 14:08:00 | Earth | 0.1307 AU | 50.9 LD | 7.7 km/s |
| 2063-02-16 22:37:00 | Earth | 0.0586 AU | 22.8 LD | 5.3 km/s |
| 2064-08-30 10:08:00 | Earth | 0.1107 AU | 43.1 LD | 4.9 km/s |
| 2065-08-04 19:31:00 | Earth | 0.0786 AU | 30.6 LD | 5.6 km/s |
| 2066-07-29 01:58:00 | Earth | 0.1899 AU | 73.9 LD | 8.8 km/s |
| 2105-07-29 08:11:00 | Earth | 0.1964 AU | 76.4 LD | 9 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