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Asteroid Near-Earth

2025 TY1

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(2025 TY1)

2025 TY1 is an asteroid in the Aten orbit class. Its orbit takes it from 0.69 AU to 1.26 AU from the Sun; one orbit takes 353.2 days. Orbit from the JPL solution of 15 October 2025.

Where is it now

Distance from Sun
1.194 AU
True anomaly
149.52°
Distance from Earth
0.341 AU
As of
24 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 — 0.994 AU from the Sun Earth 2025 TY1 — 1.194 AU from the Sun 2025 TY1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2025 TY1 is 0.341 AU from Earth today (2.8 light-minutes).

In the sky

Right ascension
23h 48m 25s
Declination
+70° 43′ 16″
Constellation
Cepheus
Distance from Earth
0.34 AU
Elongation from the Sun
118.03° — 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
0.978 AU
Eccentricity
0.2899
Inclination
35.12°
Orbital period
353.2 days
Perihelion
0.694 AU
Aphelion
1.261 AU
Longitude of ascending node
12.36°
Argument of periapsis
236.09°
Epoch · J2000
2460952.5
Orbit class · ATE
Aten
Earth MOID · 23.5 LD
0.0603 AU
Tisserand (Jupiter)
5.999

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 8).

Observations used
44
Data arc
12 days
First observed
3 October 2025
Last observed
15 October 2025
Residual RMS
0.48 ″
Solution · Otto Matic
15 October 2025

Visual & observation

Absolute magnitude (H)
22.97

Discovery & classification

Aten Near-Earth Object

Close approaches 6 on record

When (UTC) Body Distance Lunar distances Relative speed
2028-04-23 22:55:00 Venus 0.0677 AU 26.4 LD 22.7 km/s
2035-01-29 17:27:00 Venus 0.0664 AU 25.9 LD 22.7 km/s

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

Sources