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Asteroid Near-Earth

2025 UL17

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(2025 UL17)

Where is it now

Distance from Sun
0.894 AU
True anomaly
263.42°
Distance from Earth
0.636 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 2025 UL17 — 0.894 AU from the Sun 2025 UL17
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2025 UL17 is 0.636 AU from Earth today (5.3 light-minutes).

In the sky

Right ascension
10h 05m 05s
Declination
+16° 40′ 27″
Constellation
Leo
Distance from Earth
0.64 AU
Elongation from the Sun
61.68° — 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
0.928 AU
Eccentricity
0.2524
Inclination
10.42°
Orbital period
326.4 days
Perihelion
0.694 AU
Aphelion
1.162 AU
Longitude of ascending node
49.71°
Argument of periapsis
114.27°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 5.0 LD
0.0127 AU
Tisserand (Jupiter)
6.412

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
18
Data arc
2 days
First observed
31 October 2025
Last observed
2 November 2025
Residual RMS
0.24 ″
Solution · Otto Matic
2 November 2025

Visual & observation

Absolute magnitude (H)
24.99

Discovery & classification

Aten Near-Earth Object

Close approaches 45 on record

Flyby geometry
Ecliptic flyby of 2025 UL17 at 2041-06-13 09:40 UTC Top-down view of the ecliptic, Earth at the centre, for the 2041-06-13 09:40 UTC close approach of 2025 UL17. Catalogue miss distance 59.9 LD · 2.3 × 10⁷ km. The curve is the geocentric path from 2041-06-10 to 2041-06-16, 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 59.9 LD · 2.3 × 10⁷ km 2041-06-13 09:40 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2041-06-13 09:40 UTC close approach of 2025 UL17. Catalogue miss distance 59.9 LD · 2.3 × 10⁷ km. The curve is the geocentric path from 2041-06-10 to 2041-06-16, 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
2034-12-10 15:22:00 Venus 0.1403 AU 54.6 LD 11.1 km/s
2041-06-13 09:40:00 Earth 0.1539 AU 59.9 LD 7.6 km/s
2042-11-05 05:20:00 Earth 0.1469 AU 57.2 LD 12.6 km/s
2043-02-16 04:29:00 Venus 0.0934 AU 36.3 LD 11.4 km/s
2050-11-04 23:13:00 Earth 0.1171 AU 45.6 LD 6.6 km/s
2052-12-14 08:25:00 Venus 0.0215 AU 8.4 LD 7.9 km/s
2059-11-03 23:24:00 Earth 0.1962 AU 76.4 LD 14.1 km/s
2074-04-26 15:54:00 Venus 0.1331 AU 51.8 LD 10.5 km/s
2075-06-26 20:41:00 Earth 0.1435 AU 55.9 LD 9.1 km/s
2076-11-09 03:43:00 Earth 0.019 AU 7.4 LD 9.2 km/s

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

Sources