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Asteroid Near-Earth

2024 TU20

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(2024 TU20)

Where is it now

Distance from Sun
1.092 AU
True anomaly
191.02°
Distance from Earth
0.476 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 2024 TU20 — 1.092 AU from the Sun 2024 TU20
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2024 TU20 is 0.476 AU from Earth today (4.0 light-minutes).

In the sky

Right ascension
08h 32m 01s
Declination
+30° 19′ 23″
Constellation
Cancer
Distance from Earth
0.48 AU
Elongation from the Sun
88.56° — 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
0.966 AU
Eccentricity
0.1334
Inclination
11.64°
Orbital period
346.8 days
Perihelion
0.837 AU
Aphelion
1.095 AU
Longitude of ascending node
32.6°
Argument of periapsis
193.58°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 35.4 LD
0.0909 AU
Tisserand (Jupiter)
6.223

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
20
Data arc
26 days
First observed
10 October 2024
Last observed
5 November 2024
Residual RMS
0.46 ″
Solution · Otto Matic
5 November 2024

Visual & observation

Absolute magnitude (H)
24.7

Discovery & classification

Aten Near-Earth Object

Close approaches 121 on record

Flyby geometry
Ecliptic flyby of 2024 TU20 at 2027-01-13 15:12 UTC Top-down view of the ecliptic, Earth at the centre, for the 2027-01-13 15:12 UTC close approach of 2024 TU20. Catalogue miss distance 135.8 LD · 5.22 × 10⁷ km. The curve is the geocentric path from 2027-01-10 to 2027-01-16, 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 north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 135.8 LD · 5.22 × 10⁷ km 2027-01-13 15:12 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2027-01-13 15:12 UTC close approach of 2024 TU20. Catalogue miss distance 135.8 LD · 5.22 × 10⁷ km. The curve is the geocentric path from 2027-01-10 to 2027-01-16, 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 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
2027-01-13 15:12:00 Earth 0.349 AU 135.8 LD 13 km/s
2041-09-28 09:10:00 Earth 0.4923 AU 191.6 LD 18.6 km/s
2042-09-26 01:39:00 Earth 0.2159 AU 84.0 LD 10.1 km/s
2043-06-24 15:46:00 Earth 0.2223 AU 86.5 LD 6.4 km/s
2043-10-26 00:40:00 Earth 0.0987 AU 38.4 LD 6.7 km/s
2044-04-19 10:07:00 Earth 0.164 AU 63.8 LD 8.1 km/s
2045-02-10 06:25:00 Earth 0.2052 AU 79.8 LD 7.3 km/s
2046-01-08 14:53:00 Earth 0.4282 AU 166.7 LD 15.8 km/s
2046-03-01 06:59:00 Venus 0.1453 AU 56.6 LD 5.8 km/s
2056-08-26 18:39:00 Venus 0.123 AU 47.9 LD 5.8 km/s

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

Sources