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Asteroid Near-Earth

790064

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790064 (2018 LM4)

790064 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.81 AU to 1.22 AU from the Sun; one orbit takes 375.5 days. Discovered 11 June 2018 by Mount Lemmon Survey. Orbit from the JPL solution of 27 July 2026.

Where is it now

Distance from Sun
0.967 AU
True anomaly
273.01°
Distance from Earth
0.982 AU
As of
3 November 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 — 0.992 AU from the Sun Earth 790064 — 0.967 AU from the Sun 790064
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 790064 is 0.982 AU from Earth today (8.2 light-minutes).

In the sky

Right ascension
18h 43m 00s
Declination
-41° 20′ 23″
Constellation
Corona Australis
Distance from Earth
0.98 AU
Elongation from the Sun
58.56° — 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
1.019 AU
Eccentricity
0.2012
Inclination
32.24°
Orbital period
375.5 days
Perihelion
0.814 AU
Aphelion
1.224 AU
Longitude of ascending node
131.23°
Argument of periapsis
303.11°
Epoch · J2000
2461200.5
Orbit class · APO
Apollo
Earth MOID · 30.4 LD
0.0781 AU
Tisserand (Jupiter)
5.841

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
1,321
Data arc
8.12 years
First observed
11 June 2018
Last observed
26 July 2026
Residual RMS
0.4 ″
Solution · Otto Matic
27 July 2026

Physical properties

Rotation period
40.6 hours

Visual & observation

Absolute magnitude (H)
18.71

Discovery & classification

Discovered by
Mount Lemmon Survey
Discovery date
11 June 2018
Discovery site
Mount Lemmon

Also known as 2018 LM4

Apollo Near-Earth Object

Close approaches 37 on record

Flyby geometry
Ecliptic flyby of 790064 at 2057-08-04 15:16 UTC Sun 58.8 LD · 2.26 × 10⁷ km 2057-08-04 15:16 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2057-08-04 15:16 UTC close approach of 790064. Catalogue miss distance 58.8 LD · 2.26 × 10⁷ km. The curve is the geocentric path from 2057-08-01 to 2057-08-07, 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
2057-08-04 15:16:00 Earth 0.1512 AU 58.8 LD 18.1 km/s
2058-08-06 13:45:00 Earth 0.0825 AU 32.1 LD 16.4 km/s
2059-08-06 11:31:00 Earth 0.1927 AU 75.0 LD 15.8 km/s
2062-01-31 07:37:00 Earth 0.1096 AU 42.7 LD 18.2 km/s
2063-02-11 05:24:00 Earth 0.1613 AU 62.8 LD 19.8 km/s
2094-08-05 11:45:00 Earth 0.1265 AU 49.2 LD 17.7 km/s
2095-08-07 00:53:00 Earth 0.0975 AU 38.0 LD 16.1 km/s
2098-01-22 18:17:00 Earth 0.1961 AU 76.3 LD 17.9 km/s
2099-02-03 11:19:00 Earth 0.1014 AU 39.5 LD 18.5 km/s
2100-02-14 08:23:00 Earth 0.1982 AU 77.2 LD 20.4 km/s

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

Sources