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Asteroid Near-Earth Potentially hazardous

531899

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531899 (2013 BE19)

Where is it now

Distance from Sun
1.182 AU
True anomaly
178.2°
Distance from Earth
1.078 AU
As of
21 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 — 0.995 AU from the Sun Earth 531899 — 1.182 AU from the Sun 531899
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 531899 is 1.078 AU from Earth today (9.0 light-minutes).

In the sky

Right ascension
10h 16m 12s
Declination
+38° 14′ 45″
Constellation
Leo Minor
Distance from Earth
1.08 AU
Elongation from the Sun
69.47° — well clear of the Sun

Favours the northern hemisphere; low or below the horizon from far south.

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
0.911 AU
Eccentricity
0.2974
Inclination
31.01°
Orbital period
317.8 days
Perihelion
0.64 AU
Aphelion
1.182 AU
Longitude of ascending node
309.25°
Argument of periapsis
311.97°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 17.6 LD
0.0451 AU
Tisserand (Jupiter)
6.395

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
324
Data arc
13.11 years
First observed
18 January 2013
Last observed
27 February 2026
Residual RMS
0.4 ″
Solution · Otto Matic
18 May 2026

Physical properties

Rotation period
4.79 days

Visual & observation

Absolute magnitude (H)
19.71

Discovery & classification

Discovered by
CSS
Discovery date
18 January 2013
Discovery site
Catalina

Also known as 2013 BE19

Aten Near-Earth Object Potentially Hazardous Asteroid

Close approaches 46 on record

Flyby geometry
Ecliptic flyby of 531899 at 2033-01-31 17:08 UTC Top-down view of the ecliptic, Earth at the centre, for the 2033-01-31 17:08 UTC close approach of 531899. Catalogue miss distance 31.0 LD · 1.19 × 10⁷ km. The curve is the geocentric path from 2033-01-28 to 2033-02-03, 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. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 31.0 LD · 1.19 × 10⁷ km 2033-01-31 17:08 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2033-01-31 17:08 UTC close approach of 531899. Catalogue miss distance 31.0 LD · 1.19 × 10⁷ km. The curve is the geocentric path from 2033-01-28 to 2033-02-03, 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. 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
2033-01-31 17:08:00 Earth 0.0796 AU 31.0 LD 16.6 km/s
2037-09-30 01:10:00 Venus 0.0589 AU 22.9 LD 23.4 km/s
2040-01-29 19:59:00 Earth 0.1554 AU 60.5 LD 20 km/s
2048-03-10 15:28:00 Venus 0.0747 AU 29.1 LD 22.1 km/s
2053-01-31 02:33:00 Earth 0.1609 AU 62.6 LD 15.9 km/s
2060-01-31 14:39:00 Earth 0.0727 AU 28.3 LD 18.3 km/s
2062-12-25 20:16:00 Venus 0.1483 AU 57.7 LD 25.6 km/s
2073-06-04 09:06:00 Venus 0.0464 AU 18.0 LD 23 km/s
2080-02-01 10:38:00 Earth 0.047 AU 18.3 LD 17.2 km/s
2083-11-13 09:26:00 Venus 0.1031 AU 40.1 LD 21.9 km/s

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

Sources