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Asteroid Near-Earth

2024 TR4

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(2024 TR4)

Where is it now

Distance from Sun
0.865 AU
True anomaly
307.47°
Distance from Earth
0.756 AU
As of
22 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 2024 TR4 — 0.865 AU from the Sun 2024 TR4
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2024 TR4 is 0.756 AU from Earth today (6.3 light-minutes).

In the sky

Right ascension
09h 56m 48s
Declination
-17° 45′ 45″
Constellation
Hydra
Distance from Earth
0.76 AU
Elongation from the Sun
57.05° — 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
0.963 AU
Eccentricity
0.1472
Inclination
28.34°
Orbital period
345.2 days
Perihelion
0.821 AU
Aphelion
1.105 AU
Longitude of ascending node
193.91°
Argument of periapsis
293.07°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 0.1 LD
0.0002 AU
Tisserand (Jupiter)
6.152

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
67
Data arc
24 hours
First observed
6 October 2024
Last observed
7 October 2024
Residual RMS
0.35 ″
Solution · Otto Matic
7 October 2024

Visual & observation

Absolute magnitude (H)
26.88

Discovery & classification

Aten Near-Earth Object

Close approaches 75 on record

Flyby geometry
Ecliptic flyby of 2024 TR4 at 2039-05-08 12:30 UTC Top-down view of the ecliptic, Earth at the centre, for the 2039-05-08 12:30 UTC close approach of 2024 TR4. Catalogue miss distance 183.9 LD · 7.07 × 10⁷ km. The curve is the geocentric path from 2039-05-05 to 2039-05-11, 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. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 183.9 LD · 7.07 × 10⁷ km 2039-05-08 12:30 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2039-05-08 12:30 UTC close approach of 2024 TR4. Catalogue miss distance 183.9 LD · 7.07 × 10⁷ km. The curve is the geocentric path from 2039-05-05 to 2039-05-11, 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. 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
2039-05-08 12:30:00 Earth 0.4725 AU 183.9 LD 22.9 km/s
2040-04-16 07:00:00 Earth 0.1766 AU 68.7 LD 17.1 km/s
2040-10-11 11:58:00 Earth 0.3993 AU 155.4 LD 16.4 km/s
2041-03-23 05:21:00 Earth 0.2104 AU 81.9 LD 15.5 km/s
2041-10-09 03:30:00 Earth 0.0759 AU 29.5 LD 14.4 km/s
2042-09-29 21:28:00 Earth 0.2514 AU 97.8 LD 18.3 km/s
2057-04-24 00:13:00 Earth 0.271 AU 105.4 LD 18.7 km/s
2058-04-01 08:42:00 Earth 0.1278 AU 49.8 LD 15.5 km/s
2058-10-11 10:09:00 Earth 0.1893 AU 73.7 LD 14.5 km/s
2059-03-03 20:14:00 Earth 0.4015 AU 156.3 LD 17 km/s

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

Sources