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Asteroid Near-Earth Potentially hazardous

302169

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302169 (2001 TD45)

Where is it now

Distance from Sun
1.341 AU
True anomaly
169.76°
Distance from Earth
0.667 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 302169 — 1.341 AU from the Sun 302169
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 302169 is 0.667 AU from Earth today (5.5 light-minutes).

In the sky

Right ascension
06h 33m 15s
Declination
+42° 34′ 50″
Constellation
Auriga
Distance from Earth
0.66 AU
Elongation from the Sun
106.43° — 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
0.797 AU
Eccentricity
0.7776
Inclination
25.36°
Orbital period
259.7 days
Perihelion
0.177 AU
Aphelion
1.416 AU
Longitude of ascending node
30.23°
Argument of periapsis
212.47°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 10.7 LD
0.0276 AU
Tisserand (Jupiter)
6.976

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
298
Data arc
23.07 years
First observed
14 October 2001
Last observed
10 November 2024
Residual RMS
0.4 ″
Solution · Otto Matic
18 September 2026

Visual & observation

Absolute magnitude (H)
20

Discovery & classification

Discovered by
LINEAR
Discovery date
15 October 2001
Discovery site
Socorro

Also known as 2001 TD45

Aten Near-Earth Object Potentially Hazardous Asteroid

Close approaches 139 on record

Flyby geometry
Ecliptic flyby of 302169 at 2028-10-24 13:46 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-10-24 13:46 UTC close approach of 302169. Catalogue miss distance 52.6 LD · 2.02 × 10⁷ km. The curve is the geocentric path from 2028-10-21 to 2028-10-27, 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 north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 52.6 LD · 2.02 × 10⁷ km 2028-10-24 13:46 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-10-24 13:46 UTC close approach of 302169. Catalogue miss distance 52.6 LD · 2.02 × 10⁷ km. The curve is the geocentric path from 2028-10-21 to 2028-10-27, 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 north 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
2028-01-11 21:07:00 Venus 0.0503 AU 19.6 LD 34.9 km/s
2028-10-24 13:46:00 Earth 0.1351 AU 52.6 LD 22.8 km/s
2040-10-13 08:59:00 Merc 0.0753 AU 29.3 LD 52.3 km/s
2040-10-13 08:59:00 Mercury 0.0753 AU 29.3 LD 52.3 km/s
2041-07-21 05:28:00 Venus 0.1109 AU 43.2 LD 28.1 km/s
2050-10-15 08:14:00 Venus 0.0213 AU 8.3 LD 32.7 km/s
2050-10-30 00:39:00 Earth 0.096 AU 37.4 LD 28.9 km/s
2055-09-19 15:12:00 Merc 0.0754 AU 29.4 LD 53.1 km/s
2055-09-19 15:12:00 Mercury 0.0754 AU 29.4 LD 53.1 km/s
2055-10-27 00:31:00 Earth 0.0366 AU 14.3 LD 25.5 km/s

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

Sources