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Asteroid Near-Earth

2016 RB1

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(2016 RB1)

Where is it now

Distance from Sun
0.704 AU
True anomaly
59.42°
Distance from Earth
1.654 AU
As of
20 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.

Sun Earth — 0.996 AU from the Sun Earth 2016 RB1 — 0.704 AU from the Sun 2016 RB1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2016 RB1 is 1.654 AU from Earth today (13.8 light-minutes).

In the sky

Right ascension
13h 00m 23s
Declination
-06° 40′ 07″
Constellation
Virgo
Distance from Earth
1.66 AU
Elongation from the Sun
11.01° — 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.

How do I find my coordinates?

Google Maps on a computer

  1. Right-click the spot where you'll be observing.
  2. The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
  3. Paste them above.

Google Maps on a phone

  1. Press and hold the spot to drop a pin.
  2. The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

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
0.873 AU
Eccentricity
0.2805
Inclination
1.79°
Orbital period
297.8 days
Perihelion
0.628 AU
Aphelion
1.117 AU
Longitude of ascending node
344.88°
Argument of periapsis
136.3°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 0.0 LD
0.0001 AU
Tisserand (Jupiter)
6.748

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
155
Data arc
2 days
First observed
5 September 2016
Last observed
7 September 2016
Residual RMS
0.36 ″
Solution · Otto Matic
15 April 2021

Physical properties

Rotation period
0.03 hours

Visual & observation

Absolute magnitude (H)
28.3

Discovery & classification

Aten Near-Earth Object

Close approaches 157 on record

Flyby geometry
Ecliptic flyby of 2016 RB1 at 2029-06-30 03:20 UTC Top-down view of the ecliptic, Earth at the centre, for the 2029-06-30 03:20 UTC close approach of 2016 RB1. Catalogue miss distance 33.4 LD · 1.28 × 10⁷ km. The curve is the geocentric path from 2029-06-27 to 2029-07-03, 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 south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 33.4 LD · 1.28 × 10⁷ km 2029-06-30 03:20 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2029-06-30 03:20 UTC close approach of 2016 RB1. Catalogue miss distance 33.4 LD · 1.28 × 10⁷ km. The curve is the geocentric path from 2029-06-27 to 2029-07-03, 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 south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2029-06-30 03:20:00 Earth 0.0857 AU 33.4 LD 5.3 km/s
2029-11-16 03:41:00 Earth 0.2723 AU 106.0 LD 7 km/s
2033-06-17 01:07:00 Earth 0.3308 AU 128.7 LD 16.9 km/s
2034-01-20 10:11:00 Earth 0.3567 AU 138.8 LD 12.3 km/s
2034-08-29 15:54:00 Earth 0.3779 AU 147.1 LD 18.5 km/s
2038-03-23 21:41:00 Earth 0.291 AU 113.3 LD 8 km/s
2038-08-31 15:04:00 Earth 0.051 AU 19.9 LD 5.6 km/s
2042-06-09 18:55:00 Earth 0.1294 AU 50.3 LD 10.6 km/s
2042-12-24 15:22:00 Earth 0.3387 AU 131.8 LD 11.1 km/s
2047-02-25 20:02:00 Earth 0.3344 AU 130.2 LD 10.8 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources