2016 RN41 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.69 AU to 1.33 AU from the Sun; one orbit takes 372.8 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.125 AU
- True anomaly
- 233.28°
- Distance from Earth
- 1.242 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
- 18h 45m 38s
- Declination
- -20° 10′ 26″
- Constellation
- Sagittarius
- Distance from Earth
- 1.24 AU
- Elongation from the Sun
- 59.14° — near the Sun — look low at dusk or dawn
Favours the southern hemisphere; low or below the horizon from far north.
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
- 1.014 AU
- Eccentricity
- 0.3162
- Inclination
- 9.58°
- Orbital period
- 372.8 days
- Perihelion
- 0.693 AU
- Aphelion
- 1.334 AU
- Longitude of ascending node
- 169.03°
- Argument of periapsis
- 287.27°
- Epoch · J2000
- 2457642.5
- Orbit class · APO
- Apollo
- Earth MOID · 0.1 LD
- 0.0002 AU
- Tisserand (Jupiter)
- 5.959
Orbit quality
Orbit very uncertain — the object may be effectively lost (uncertainty code 9).
- Observations used
- 10
- First observed
- 11 September 2016
- Last observed
- 11 September 2016
- Residual RMS
- 0.39 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 31.02
Discovery & classification
Close approaches 15 on record
Top-down view of the ecliptic, Earth at the centre, for the 2034-05-19 21:23 UTC close approach of 2016 RN41. Catalogue miss distance 90.6 LD · 3.48 × 10⁷ km. The curve is the geocentric path from 2034-05-16 to 2034-05-22, 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. 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 |
|---|---|---|---|---|
| 2034-05-19 21:23:00 | Earth | 0.2327 AU | 90.6 LD | 16.7 km/s |
| 2067-09-09 06:12:00 | Earth | 0.1235 AU | 48.0 LD | 13.9 km/s |
| 2085-05-14 07:44:00 | Earth | 0.1051 AU | 40.9 LD | 12.3 km/s |
| 2086-07-12 12:36:00 | Earth | 0.2677 AU | 104.2 LD | 8.2 km/s |
| 2086-12-11 06:38:00 | Earth | 0.3604 AU | 140.3 LD | 12.6 km/s |
| 2087-09-11 21:31:00 | Earth | 0.0422 AU | 16.4 LD | 11.4 km/s |
| 2087-12-27 13:59:00 | Venus | 0.1262 AU | 49.1 LD | 17.3 km/s |
| 2126-02-14 06:07:00 | Venus | 0.0526 AU | 20.5 LD | 13.5 km/s |
| 2127-09-01 02:23:00 | Earth | 0.356 AU | 138.5 LD | 20.9 km/s |
| 2127-11-13 17:09:00 | Venus | 0.129 AU | 50.2 LD | 9.2 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