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Asteroid Near-Earth

2019 DL1

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(2019 DL1)

Where is it now

Distance from Sun
0.853 AU
True anomaly
269.53°
Distance from Earth
1.655 AU
As of
20 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 2019 DL1 — 0.853 AU from the Sun 2019 DL1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2019 DL1 is 1.655 AU from Earth today (13.8 light-minutes).

In the sky

Right ascension
15h 12m 53s
Declination
-21° 23′ 08″
Constellation
Libra
Distance from Earth
1.65 AU
Elongation from the Sun
24.32° — near the Sun — look low at dusk or dawn

Favours the southern hemisphere; low or below the horizon from far north.

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
0.875 AU
Eccentricity
0.1629
Inclination
6.51°
Orbital period
299 days
Perihelion
0.733 AU
Aphelion
1.018 AU
Longitude of ascending node
347.09°
Argument of periapsis
3.47°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 9.7 LD
0.0248 AU
Tisserand (Jupiter)
6.751

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
49
Data arc
10 days
First observed
28 February 2019
Last observed
10 March 2019
Residual RMS
0.39 ″
Solution · Otto Matic
26 December 2023

Visual & observation

Absolute magnitude (H)
26.6

Discovery & classification

Aten Near-Earth Object

Close approaches 105 on record

Flyby geometry
Ecliptic flyby of 2019 DL1 at 2028-03-09 11:49 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-03-09 11:49 UTC close approach of 2019 DL1. Catalogue miss distance 9.67 LD · 3.72 × 10⁶ km. The curve is the geocentric path from 2028-03-06 to 2028-03-12, 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 9.67 LD · 3.72 × 10⁶ km 2028-03-09 11:49 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-03-09 11:49 UTC close approach of 2019 DL1. Catalogue miss distance 9.67 LD · 3.72 × 10⁶ km. The curve is the geocentric path from 2028-03-06 to 2028-03-12, 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
2028-03-09 11:49:00 Earth 0.0248 AU 9.7 LD 4.4 km/s
2028-08-05 19:58:00 Venus 0.0935 AU 36.4 LD 6.2 km/s
2032-09-09 05:38:00 Earth 0.2748 AU 106.9 LD 8.8 km/s
2033-03-31 12:47:00 Earth 0.4538 AU 176.6 LD 17.9 km/s
2037-02-08 05:38:00 Earth 0.0778 AU 30.3 LD 5.7 km/s
2038-06-14 15:45:00 Venus 0.112 AU 43.6 LD 6.9 km/s
2041-10-22 21:06:00 Earth 0.2481 AU 96.6 LD 7.2 km/s
2042-04-08 09:32:00 Earth 0.1898 AU 73.9 LD 9.5 km/s
2046-02-08 11:39:00 Earth 0.397 AU 154.5 LD 16.2 km/s
2046-08-25 10:56:00 Earth 0.2733 AU 106.4 LD 8.7 km/s

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

Sources