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Asteroid Near-Earth

2023 TB2

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(2023 TB2)

Where is it now

Distance from Sun
0.631 AU
True anomaly
297.67°
Distance from Earth
1.162 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 2023 TB2 — 0.631 AU from the Sun 2023 TB2
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 TB2 is 1.162 AU from Earth today (9.7 light-minutes).

In the sky

Right ascension
11h 33m 35s
Declination
+06° 32′ 43″
Constellation
Leo
Distance from Earth
1.17 AU
Elongation from the Sun
32.64° — 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
0.789 AU
Eccentricity
0.2987
Inclination
8.64°
Orbital period
256.1 days
Perihelion
0.553 AU
Aphelion
1.025 AU
Longitude of ascending node
338.99°
Argument of periapsis
194.49°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 0.4 LD
0.0012 AU
Tisserand (Jupiter)
7.329

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
73
Data arc
57 days
First observed
7 September 2023
Last observed
3 November 2023
Residual RMS
0.56 ″
Solution · Otto Matic
11 March 2024

Visual & observation

Absolute magnitude (H)
23.85

Discovery & classification

Listed by JPL impact monitoring; see the Sentry table for current probabilities.

Aten Near-Earth Object

Close approaches 85 on record

Flyby geometry
Ecliptic flyby of 2023 TB2 at 2028-04-22 03:00 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-04-22 03:00 UTC close approach of 2023 TB2. Catalogue miss distance 167.6 LD · 6.44 × 10⁷ km. The curve is the geocentric path from 2028-04-19 to 2028-04-25, 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 167.6 LD · 6.44 × 10⁷ km 2028-04-22 03:00 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-04-22 03:00 UTC close approach of 2023 TB2. Catalogue miss distance 167.6 LD · 6.44 × 10⁷ km. The curve is the geocentric path from 2028-04-19 to 2028-04-25, 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
2028-03-15 01:15:00 Venus 0.125 AU 48.7 LD 10.5 km/s
2028-04-22 03:00:00 Earth 0.4307 AU 167.6 LD 14.2 km/s
2028-09-30 23:27:00 Earth 0.4965 AU 193.2 LD 21.4 km/s
2030-09-04 16:33:00 Earth 0.0163 AU 6.4 LD 6.6 km/s
2033-01-25 05:20:00 Venus 0.0936 AU 36.4 LD 12.1 km/s
2033-02-17 23:32:00 Earth 0.4257 AU 165.7 LD 15.7 km/s
2033-12-29 01:19:00 Venus 0.0985 AU 38.4 LD 9.8 km/s
2035-04-23 08:34:00 Earth 0.4317 AU 168.0 LD 14.2 km/s
2035-10-01 13:17:00 Earth 0.4938 AU 192.2 LD 21.3 km/s
2037-09-08 23:49:00 Earth 0.0329 AU 12.8 LD 6.4 km/s

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

Sources