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Asteroid Near-Earth

2023 YT

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(2023 YT)

Where is it now

Distance from Sun
0.984 AU
True anomaly
225.62°
Distance from Earth
1.305 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 2023 YT — 0.984 AU from the Sun 2023 YT
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 YT is 1.305 AU from Earth today (10.9 light-minutes).

In the sky

Right ascension
10h 47m 55s
Declination
+05° 13′ 12″
Constellation
Sextans
Distance from Earth
1.3 AU
Elongation from the Sun
48.36° — 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
0.949 AU
Eccentricity
0.0547
Inclination
8°
Orbital period
337.5 days
Perihelion
0.897 AU
Aphelion
1.001 AU
Longitude of ascending node
270.54°
Argument of periapsis
335.88°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 4.5 LD
0.0115 AU
Tisserand (Jupiter)
6.329

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
44
Data arc
8 days
First observed
18 December 2023
Last observed
26 December 2023
Residual RMS
0.38 ″
Solution · Otto Matic
10 February 2024

Visual & observation

Absolute magnitude (H)
26.22

Discovery & classification

Aten Near-Earth Object

Close approaches 54 on record

Flyby geometry
Ecliptic flyby of 2023 YT at 2035-12-14 22:51 UTC Top-down view of the ecliptic, Earth at the centre, for the 2035-12-14 22:51 UTC close approach of 2023 YT. Catalogue miss distance 25.5 LD · 9.81 × 10⁶ km. The curve is the geocentric path from 2035-12-11 to 2035-12-17, 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 25.5 LD · 9.81 × 10⁶ km 2035-12-14 22:51 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2035-12-14 22:51 UTC close approach of 2023 YT. Catalogue miss distance 25.5 LD · 9.81 × 10⁶ km. The curve is the geocentric path from 2035-12-11 to 2035-12-17, 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
2035-12-14 22:51:00 Earth 0.0656 AU 25.5 LD 4.6 km/s
2036-04-12 09:16:00 Earth 0.1536 AU 59.8 LD 3.4 km/s
2037-01-01 21:11:00 Earth 0.3834 AU 149.2 LD 13.6 km/s
2047-11-18 13:19:00 Earth 0.2398 AU 93.3 LD 8.3 km/s
2048-06-15 06:51:00 Earth 0.1157 AU 45.0 LD 5.1 km/s
2049-01-03 07:53:00 Earth 0.193 AU 75.1 LD 8 km/s
2059-11-11 08:11:00 Earth 0.42 AU 163.4 LD 13.9 km/s
2060-08-06 14:01:00 Earth 0.1309 AU 50.9 LD 4.6 km/s
2060-12-23 10:25:00 Earth 0.0142 AU 5.5 LD 4.4 km/s
2061-12-30 22:25:00 Earth 0.4783 AU 186.1 LD 16.5 km/s

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

Sources