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Asteroid Near-Earth

2023 DH1

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(2023 DH1)

Where is it now

Distance from Sun
1.064 AU
True anomaly
136.09°
Distance from Earth
1.971 AU
As of
21 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 DH1 — 1.064 AU from the Sun 2023 DH1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 DH1 is 1.971 AU from Earth today (16.4 light-minutes).

In the sky

Right ascension
12h 44m 06s
Declination
-03° 51′ 04″
Constellation
Virgo
Distance from Earth
1.97 AU
Elongation from the Sun
17.55° — too close to the Sun to observe

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
0.931 AU
Eccentricity
0.2478
Inclination
3.55°
Orbital period
328.2 days
Perihelion
0.7 AU
Aphelion
1.162 AU
Longitude of ascending node
150.13°
Argument of periapsis
248.46°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 2.7 LD
0.0069 AU
Tisserand (Jupiter)
6.406

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
74
Data arc
14 days
First observed
28 February 2023
Last observed
14 March 2023
Residual RMS
0.39 ″
Solution · Otto Matic
15 March 2023

Visual & observation

Absolute magnitude (H)
26.72

Discovery & classification

Aten Near-Earth Object

Close approaches 127 on record

Flyby geometry
Ecliptic flyby of 2023 DH1 at 2032-03-12 02:05 UTC Top-down view of the ecliptic, Earth at the centre, for the 2032-03-12 02:05 UTC close approach of 2023 DH1. Catalogue miss distance 40.7 LD · 1.57 × 10⁷ km. The curve is the geocentric path from 2032-03-09 to 2032-03-15, 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 approximate: a two-body Kepler propagation of the catalogue orbital elements, not a numerical integration. The Moon’s position is approximate. The inset is a heliocentric view and is approximate. approximate Sun 40.7 LD · 1.57 × 10⁷ km 2032-03-12 02:05 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2032-03-12 02:05 UTC close approach of 2023 DH1. Catalogue miss distance 40.7 LD · 1.57 × 10⁷ km. The curve is the geocentric path from 2032-03-09 to 2032-03-15, 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 approximate: a two-body Kepler propagation of the catalogue orbital elements, not a numerical integration. The Moon’s position is approximate. The inset is a heliocentric view and is approximate.

When (UTC) Body Distance Lunar distances Relative speed
2027-05-08 23:05:00 Venus 0.1059 AU 41.2 LD 10.9 km/s
2032-03-12 02:05:00 Earth 0.1047 AU 40.7 LD 5 km/s
2032-10-05 06:15:00 Earth 0.2874 AU 111.9 LD 9.3 km/s
2033-06-23 09:16:00 Earth 0.161 AU 62.7 LD 11.5 km/s
2037-05-03 00:47:00 Venus 0.0413 AU 16.1 LD 6.4 km/s
2040-03-09 16:54:00 Earth 0.3787 AU 147.4 LD 18.6 km/s
2040-12-27 08:30:00 Earth 0.2288 AU 89.0 LD 6.3 km/s
2041-04-14 13:51:00 Earth 0.1617 AU 62.9 LD 5.6 km/s
2041-09-14 06:58:00 Earth 0.2617 AU 101.8 LD 8 km/s
2042-06-18 23:44:00 Earth 0.2766 AU 107.6 LD 15.2 km/s

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

Sources