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Asteroid Near-Earth

436030

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436030 (2009 JO2)

Where is it now

Distance from Sun
0.464 AU
True anomaly
357.4°
Distance from Earth
0.81 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 436030 — 0.464 AU from the Sun 436030
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 436030 is 0.81 AU from Earth today (6.7 light-minutes).

In the sky

Right ascension
11h 51m 50s
Declination
-09° 18′ 23″
Constellation
Crater
Distance from Earth
0.82 AU
Elongation from the Sun
27.46° — 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
0.888 AU
Eccentricity
0.4784
Inclination
19.62°
Orbital period
305.8 days
Perihelion
0.463 AU
Aphelion
1.313 AU
Longitude of ascending node
203.41°
Argument of periapsis
239.73°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 21.7 LD
0.0557 AU
Tisserand (Jupiter)
6.541

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
673
Data arc
17.19 years
First observed
13 May 2009
Last observed
20 July 2026
Residual RMS
0.4 ″
Solution · Otto Matic
21 July 2026

Physical properties

Mean radius
0.15 km

Visual & observation

Geometric albedo
0.296
Absolute magnitude (H)
19.42

Discovery & classification

Discovered by
Mt. Lemmon Survey
Discovery date
13 May 2009
Discovery site
Mount Lemmon

Also known as 2009 JO2

Aten Near-Earth Object

Close approaches 40 on record

Flyby geometry
Ecliptic flyby of 436030 at 2030-04-26 02:01 UTC Top-down view of the ecliptic, Earth at the centre, for the 2030-04-26 02:01 UTC close approach of 436030. Catalogue miss distance 55.1 LD · 2.12 × 10⁷ km. The curve is the geocentric path from 2030-04-23 to 2030-04-29, 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 55.1 LD · 2.12 × 10⁷ km 2030-04-26 02:01 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2030-04-26 02:01 UTC close approach of 436030. Catalogue miss distance 55.1 LD · 2.12 × 10⁷ km. The curve is the geocentric path from 2030-04-23 to 2030-04-29, 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
2030-04-26 02:01:00 Earth 0.1415 AU 55.1 LD 20 km/s
2034-06-18 02:05:00 Venus 0.1437 AU 55.9 LD 18 km/s
2055-05-20 19:27:00 Venus 0.1374 AU 53.5 LD 22.9 km/s
2056-04-18 12:34:00 Earth 0.1197 AU 46.6 LD 14.1 km/s
2061-04-22 07:19:00 Earth 0.0647 AU 25.2 LD 17.4 km/s
2064-08-09 09:42:00 Venus 0.138 AU 53.7 LD 18.3 km/s
2066-04-28 02:31:00 Earth 0.1848 AU 71.9 LD 21.3 km/s
2068-08-08 02:56:00 Venus 0.1491 AU 58.0 LD 21.7 km/s
2085-07-12 16:52:00 Venus 0.1492 AU 58.1 LD 23.9 km/s
2087-04-19 19:14:00 Earth 0.1996 AU 77.7 LD 12.5 km/s

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

Sources