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Asteroid Near-Earth

2015 XT1

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(2015 XT1)

Where is it now

Distance from Sun
0.636 AU
True anomaly
299.67°
Distance from Earth
1.606 AU
As of
19 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 2015 XT1 — 0.636 AU from the Sun 2015 XT1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2015 XT1 is 1.606 AU from Earth today (13.4 light-minutes).

In the sky

Right ascension
13h 10m 25s
Declination
-06° 02′ 10″
Constellation
Virgo
Distance from Earth
1.61 AU
Elongation from the Sun
8.05° — 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
0.83 AU
Eccentricity
0.33
Inclination
4.97°
Orbital period
276.3 days
Perihelion
0.556 AU
Aphelion
1.104 AU
Longitude of ascending node
143.58°
Argument of periapsis
102.6°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 18.9 LD
0.0485 AU
Tisserand (Jupiter)
7.019

Orbit quality

Orbit very well determined (uncertainty code 1).

Observations used
64
Data arc
8.91 years
First observed
3 December 2015
Last observed
31 October 2024
Residual RMS
0.32 ″
Solution · Otto Matic
31 October 2024

Visual & observation

Absolute magnitude (H)
23.38

Discovery & classification

Aten Near-Earth Object

Close approaches 253 on record

Flyby geometry
Ecliptic flyby of 2015 XT1 at 2027-10-25 23:33 UTC Top-down view of the ecliptic, Earth at the centre, for the 2027-10-25 23:33 UTC close approach of 2015 XT1. Catalogue miss distance 122.0 LD · 4.69 × 10⁷ km. The curve is the geocentric path from 2027-10-22 to 2027-10-28, 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 122.0 LD · 4.69 × 10⁷ km 2027-10-25 23:33 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2027-10-25 23:33 UTC close approach of 2015 XT1. Catalogue miss distance 122.0 LD · 4.69 × 10⁷ km. The curve is the geocentric path from 2027-10-22 to 2027-10-28, 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
2027-10-25 23:33:00 Earth 0.3135 AU 122.0 LD 18.7 km/s
2028-04-14 10:12:00 Venus 0.0782 AU 30.4 LD 8.6 km/s
2028-05-10 04:51:00 Earth 0.4523 AU 176.0 LD 16.1 km/s
2030-10-31 22:03:00 Earth 0.4646 AU 180.8 LD 23.8 km/s
2031-05-28 02:32:00 Earth 0.4614 AU 179.5 LD 16.7 km/s
2032-04-07 06:33:00 Venus 0.12 AU 46.7 LD 17.3 km/s
2034-06-14 03:27:00 Earth 0.4565 AU 177.7 LD 16.3 km/s
2035-01-01 04:09:00 Earth 0.367 AU 142.8 LD 20.8 km/s
2037-07-01 17:54:00 Earth 0.4374 AU 170.2 LD 14.9 km/s
2038-01-07 01:35:00 Earth 0.2086 AU 81.2 LD 15.5 km/s

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

Sources