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Asteroid Near-Earth

891458

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891458 (2015 AJ44)

Where is it now

Distance from Sun
1.309 AU
True anomaly
179.15°
Distance from Earth
1.794 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 891458 — 1.309 AU from the Sun 891458
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 891458 is 1.794 AU from Earth today (14.9 light-minutes).

In the sky

Right ascension
10h 55m 02s
Declination
+07° 57′ 23″
Constellation
Leo
Distance from Earth
1.79 AU
Elongation from the Sun
45.83° — 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
0.887 AU
Eccentricity
0.4764
Inclination
6.32°
Orbital period
305.1 days
Perihelion
0.464 AU
Aphelion
1.309 AU
Longitude of ascending node
116.96°
Argument of periapsis
192.68°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 25.6 LD
0.0657 AU
Tisserand (Jupiter)
6.589

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
99
Data arc
11.17 years
First observed
14 January 2015
Last observed
16 March 2026
Residual RMS
0.51 ″
Solution · Otto Matic
7 June 2026

Visual & observation

Absolute magnitude (H)
22.38

Discovery & classification

Discovered by
Pan-STARRS 1
Discovery date
14 January 2015
Discovery site
Haleakala

Also known as 2015 AJ44

Aten Near-Earth Object

Close approaches 165 on record

Flyby geometry
Ecliptic flyby of 891458 at 2031-03-19 12:01 UTC Top-down view of the ecliptic, Earth at the centre, for the 2031-03-19 12:01 UTC close approach of 891458. Catalogue miss distance 38.4 LD · 1.48 × 10⁷ km. The curve is the geocentric path from 2031-03-16 to 2031-03-22, 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. Sun 17 Mar 21 Mar 38.4 LD · 1.48 × 10⁷ km 2031-03-19 12:01 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2031-03-19 12:01 UTC close approach of 891458. Catalogue miss distance 38.4 LD · 1.48 × 10⁷ km. The curve is the geocentric path from 2031-03-16 to 2031-03-22, 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.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2027-02-15 11:41:00 Venus 0.0569 AU 22.2 LD 16 km/s
2031-03-19 12:01:00 Earth 0.0987 AU 38.4 LD 13.8 km/s
2034-09-28 05:44:00 Mercury 0.0856 AU 33.3 LD 18.6 km/s
2034-09-28 05:44:00 Merc 0.0856 AU 33.3 LD 18.6 km/s
2034-11-02 07:47:00 Venus 0.0564 AU 21.9 LD 18.2 km/s
2034-12-17 02:01:00 Earth 0.1566 AU 61.0 LD 11.1 km/s
2036-03-17 23:15:00 Earth 0.1294 AU 50.4 LD 12 km/s
2036-05-21 03:16:00 Mercury 0.0766 AU 29.8 LD 14.9 km/s
2036-05-21 03:16:00 Merc 0.0766 AU 29.8 LD 14.9 km/s
2038-10-26 21:54:00 Venus 0.0867 AU 33.7 LD 13.9 km/s

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

Sources