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Asteroid Near-Earth

2019 XO1

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(2019 XO1)

Where is it now

Distance from Sun
0.445 AU
True anomaly
33.02°
Distance from Earth
1.144 AU
As of
15 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 — 0.997 AU from the Sun Earth 2019 XO1 — 0.445 AU from the Sun 2019 XO1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2019 XO1 is 1.144 AU from Earth today (9.5 light-minutes).

In the sky

Right ascension
14h 54m 13s
Declination
-18° 15′ 08″
Constellation
Libra
Distance from Earth
1.13 AU
Elongation from the Sun
23.32° — near the Sun — look low at dusk or dawn

Favours the southern hemisphere; low or below the horizon from far north.

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
0.708 AU
Eccentricity
0.4003
Inclination
6.62°
Orbital period
217.5 days
Perihelion
0.424 AU
Aphelion
0.991 AU
Longitude of ascending node
71.96°
Argument of periapsis
180.02°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.9 LD
0.0049 AU
Tisserand (Jupiter)
8.024

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
27
Data arc
13 days
First observed
3 December 2019
Last observed
16 December 2019
Residual RMS
0.5 ″
Solution · Otto Matic
24 March 2025

Visual & observation

Absolute magnitude (H)
24.35

Discovery & classification

Aten Near-Earth Object

Close approaches 38 on record

Flyby geometry
Ecliptic flyby of 2019 XO1 at 2038-11-17 01:03 UTC Top-down view of the ecliptic, Earth at the centre, for the 2038-11-17 01:03 UTC close approach of 2019 XO1. Catalogue miss distance 69.4 LD · 2.67 × 10⁷ km. The curve is the geocentric path from 2038-11-14 to 2038-11-20, 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 69.4 LD · 2.67 × 10⁷ km 2038-11-17 01:03 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2038-11-17 01:03 UTC close approach of 2019 XO1. Catalogue miss distance 69.4 LD · 2.67 × 10⁷ km. The curve is the geocentric path from 2038-11-14 to 2038-11-20, 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
2027-12-26 05:31:00 Merc 0.0624 AU 24.3 LD 24.5 km/s
2027-12-26 05:31:00 Mercury 0.0624 AU 24.3 LD 24.5 km/s
2029-11-08 18:47:00 Venus 0.0632 AU 24.6 LD 16.9 km/s
2030-06-20 04:09:00 Venus 0.0936 AU 36.4 LD 10.5 km/s
2034-12-27 05:12:00 Venus 0.0464 AU 18.1 LD 15.7 km/s
2038-11-17 01:03:00 Earth 0.1783 AU 69.4 LD 13.6 km/s
2041-08-16 11:02:00 Merc 0.0638 AU 24.8 LD 24.5 km/s
2041-08-16 11:02:00 Mercury 0.0638 AU 24.8 LD 24.5 km/s
2041-11-18 18:40:00 Earth 0.0653 AU 25.4 LD 9.5 km/s

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

Sources