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Asteroid Near-Earth

2023 DH

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(2023 DH)

Where is it now

Distance from Sun
0.735 AU
True anomaly
49.44°
Distance from Earth
0.29 AU
As of
19 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 — 0.996 AU from the Sun Earth 2023 DH — 0.735 AU from the Sun 2023 DH
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 DH is 0.29 AU from Earth today (2.4 light-minutes).

In the sky

Right ascension
13h 03m 23s
Declination
+10° 45′ 31″
Constellation
Virgo
Distance from Earth
0.29 AU
Elongation from the Sun
23.04° — 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
0.853 AU
Eccentricity
0.1852
Inclination
7.14°
Orbital period
287.8 days
Perihelion
0.695 AU
Aphelion
1.011 AU
Longitude of ascending node
331.48°
Argument of periapsis
11.48°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 6.6 LD
0.017 AU
Tisserand (Jupiter)
6.889

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
49
Data arc
7 days
First observed
19 February 2023
Last observed
26 February 2023
Residual RMS
0.39 ″
Solution · Otto Matic
26 February 2023

Visual & observation

Absolute magnitude (H)
27.47

Discovery & classification

Aten Near-Earth Object

Close approaches 56 on record

Flyby geometry
Ecliptic flyby of 2023 DH at 2027-03-25 07:59 UTC Top-down view of the ecliptic, Earth at the centre, for the 2027-03-25 07:59 UTC close approach of 2023 DH. Catalogue miss distance 114.2 LD · 4.39 × 10⁷ km. The curve is the geocentric path from 2027-03-22 to 2027-03-28, 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. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 114.2 LD · 4.39 × 10⁷ km 2027-03-25 07:59 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2027-03-25 07:59 UTC close approach of 2023 DH. Catalogue miss distance 114.2 LD · 4.39 × 10⁷ km. The curve is the geocentric path from 2027-03-22 to 2027-03-28, 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. At closest approach the object is south 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
2026-10-13 21:15:00 Earth 0.2919 AU 113.6 LD 8.5 km/s
2027-03-25 07:59:00 Earth 0.2934 AU 114.2 LD 12.9 km/s
2030-02-10 08:22:00 Earth 0.4744 AU 184.6 LD 19.1 km/s
2030-08-13 16:46:00 Earth 0.3103 AU 120.8 LD 10 km/s
2034-02-05 06:09:00 Earth 0.0683 AU 26.6 LD 6.2 km/s
2038-03-26 05:49:00 Earth 0.2328 AU 90.6 LD 10.9 km/s
2045-02-01 13:44:00 Earth 0.1936 AU 75.3 LD 10.1 km/s
2046-04-28 21:38:00 Venus 0.1036 AU 40.3 LD 10.9 km/s
2048-11-29 02:50:00 Earth 0.229 AU 89.1 LD 3.5 km/s
2049-03-21 11:48:00 Earth 0.1035 AU 40.3 LD 6.5 km/s

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

Sources