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Asteroid Near-Earth

2023 TD

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(2023 TD)

Where is it now

Distance from Sun
0.692 AU
True anomaly
349.98°
Distance from Earth
1.142 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 2023 TD — 0.692 AU from the Sun 2023 TD
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 TD is 1.142 AU from Earth today (9.5 light-minutes).

In the sky

Right ascension
11h 41m 34s
Declination
+03° 30′ 49″
Constellation
Virgo
Distance from Earth
1.14 AU
Elongation from the Sun
36.97° — near the Sun — look low at dusk or dawn

Visible from both hemispheres.

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
0.967 AU
Eccentricity
0.2871
Inclination
2.38°
Orbital period
347.3 days
Perihelion
0.689 AU
Aphelion
1.244 AU
Longitude of ascending node
9.78°
Argument of periapsis
114.73°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 0.4 LD
0.0011 AU
Tisserand (Jupiter)
6.207

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
62
Data arc
24 hours
First observed
3 October 2023
Last observed
4 October 2023
Residual RMS
0.37 ″
Solution · Otto Matic
28 July 2026

Visual & observation

Absolute magnitude (H)
27.1

Discovery & classification

Aten Near-Earth Object

Close approaches 41 on record

Flyby geometry
Ecliptic flyby of 2023 TD at 2039-05-25 15:17 UTC Top-down view of the ecliptic, Earth at the centre, for the 2039-05-25 15:17 UTC close approach of 2023 TD. Catalogue miss distance 55.4 LD · 2.13 × 10⁷ km. The curve is the geocentric path from 2039-05-22 to 2039-05-28, 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 55.4 LD · 2.13 × 10⁷ km 2039-05-25 15:17 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2039-05-25 15:17 UTC close approach of 2023 TD. Catalogue miss distance 55.4 LD · 2.13 × 10⁷ km. The curve is the geocentric path from 2039-05-22 to 2039-05-28, 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
2032-08-05 14:03:00 Venus 0.0965 AU 37.5 LD 11 km/s
2039-05-25 15:17:00 Earth 0.1423 AU 55.4 LD 12.2 km/s
2040-06-06 11:23:00 Earth 0.1503 AU 58.5 LD 5.4 km/s
2042-09-24 17:47:00 Earth 0.1233 AU 48.0 LD 5.4 km/s
2043-01-22 16:08:00 Venus 0.1296 AU 50.5 LD 12.7 km/s
2043-09-29 17:37:00 Earth 0.1692 AU 65.8 LD 13.2 km/s
2051-06-29 01:00:00 Venus 0.1024 AU 39.8 LD 11.5 km/s
2059-05-20 21:10:00 Earth 0.0324 AU 12.6 LD 8 km/s
2061-12-15 06:19:00 Venus 0.073 AU 28.4 LD 10 km/s
2062-10-04 15:29:00 Earth 0.0174 AU 6.8 LD 8.6 km/s

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

Sources