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Asteroid Near-Earth

2013 BP15

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(2013 BP15)

2013 BP15 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.89 AU to 1.19 AU from the Sun; one orbit takes 386.4 days. Orbit from the JPL solution of 15 April 2021.

Where is it now

Distance from Sun
1.122 AU
True anomaly
229.02°
Distance from Earth
1.44 AU
As of
4 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.

Sun Earth — 0.992 AU from the Sun Earth 2013 BP15 — 1.122 AU from the Sun 2013 BP15
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2013 BP15 is 1.44 AU from Earth today (12.0 light-minutes).

In the sky

Right ascension
11h 25m 43s
Declination
+01° 33′ 42″
Constellation
Leo
Distance from Earth
1.44 AU
Elongation from the Sun
51.01° — near the Sun — look low at dusk or dawn

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
1.038 AU
Eccentricity
0.1426
Inclination
15.87°
Orbital period
386.4 days
Perihelion
0.89 AU
Aphelion
1.186 AU
Longitude of ascending node
299.18°
Argument of periapsis
320.09°
Epoch · J2000
2461200.5
Orbit class · APO
Apollo
Earth MOID · 36.8 LD
0.0946 AU
Tisserand (Jupiter)
5.863

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
16
Data arc
16 days
First observed
16 January 2013
Last observed
1 February 2013
Residual RMS
0.55 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
24.3

Discovery & classification

Apollo Near-Earth Object

Close approaches 19 on record

Flyby geometry
Ecliptic flyby of 2013 BP15 at 2030-02-15 15:05 UTC Sun 128.3 LD · 4.93 × 10⁷ km 2030-02-15 15:05 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2030-02-15 15:05 UTC close approach of 2013 BP15. Catalogue miss distance 128.3 LD · 4.93 × 10⁷ km. The curve is the geocentric path from 2030-02-12 to 2030-02-18, 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
2030-02-15 15:05:00 Earth 0.3298 AU 128.3 LD 14.3 km/s
2031-02-01 09:54:00 Earth 0.1429 AU 55.6 LD 9.1 km/s
2031-12-28 07:37:00 Earth 0.2618 AU 101.9 LD 8.7 km/s
2032-08-03 10:40:00 Earth 0.1019 AU 39.6 LD 9.9 km/s
2033-09-06 17:00:00 Earth 0.3771 AU 146.7 LD 16.4 km/s
2048-02-15 18:12:00 Earth 0.4079 AU 158.7 LD 16.6 km/s
2049-02-07 09:53:00 Earth 0.1574 AU 61.3 LD 9.6 km/s

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

Sources