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Asteroid Near-Earth

2025 KZ1

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(2025 KZ1)

Where is it now

Distance from Sun
1.042 AU
True anomaly
189.84°
Distance from Earth
1.757 AU
As of
16 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 2025 KZ1 — 1.042 AU from the Sun 2025 KZ1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2025 KZ1 is 1.757 AU from Earth today (14.6 light-minutes).

In the sky

Right ascension
15h 26m 28s
Declination
-21° 25′ 35″
Constellation
Libra
Distance from Earth
1.76 AU
Elongation from the Sun
31.16° — 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
0.755 AU
Eccentricity
0.3924
Inclination
11.85°
Orbital period
239.7 days
Perihelion
0.459 AU
Aphelion
1.051 AU
Longitude of ascending node
63.11°
Argument of periapsis
11.66°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 8.1 LD
0.0208 AU
Tisserand (Jupiter)
7.576

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
32
Data arc
5 days
First observed
23 May 2025
Last observed
28 May 2025
Residual RMS
0.57 ″
Solution · Otto Matic
28 May 2025

Visual & observation

Absolute magnitude (H)
27.2

Discovery & classification

Aten Near-Earth Object

Close approaches 27 on record

Flyby geometry
Ecliptic flyby of 2025 KZ1 at 2027-06-16 03:39 UTC Top-down view of the ecliptic, Earth at the centre, for the 2027-06-16 03:39 UTC close approach of 2025 KZ1. Catalogue miss distance 37.8 LD · 1.45 × 10⁷ km. The curve is the geocentric path from 2027-06-13 to 2027-06-19, 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 37.8 LD · 1.45 × 10⁷ km 2027-06-16 03:39 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2027-06-16 03:39 UTC close approach of 2025 KZ1. Catalogue miss distance 37.8 LD · 1.45 × 10⁷ km. The curve is the geocentric path from 2027-06-13 to 2027-06-19, 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
2027-06-16 03:39:00 Earth 0.0971 AU 37.8 LD 9.2 km/s
2035-01-26 03:02:00 Venus 0.0922 AU 35.9 LD 13 km/s
2042-09-17 02:26:00 Venus 0.1357 AU 52.8 LD 10.2 km/s
2044-05-13 18:52:00 Earth 0.0903 AU 35.1 LD 11.1 km/s
2044-11-29 04:26:00 Venus 0.1046 AU 40.7 LD 11.7 km/s
2048-06-20 14:56:00 Earth 0.1258 AU 49.0 LD 10.2 km/s
2052-07-19 17:38:00 Venus 0.121 AU 47.1 LD 11.5 km/s
2062-05-21 12:31:00 Venus 0.1085 AU 42.2 LD 14.2 km/s
2063-05-14 08:27:00 Earth 0.1823 AU 70.9 LD 14 km/s
2069-06-24 05:50:00 Earth 0.1765 AU 68.7 LD 12.1 km/s

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

Sources