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Asteroid Near-Earth

2007 TH3

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(2007 TH3)

Where is it now

Distance from Sun
1.016 AU
True anomaly
120.21°
Distance from Earth
0.369 AU
As of
24 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 — 0.994 AU from the Sun Earth 2007 TH3 — 1.016 AU from the Sun 2007 TH3
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2007 TH3 is 0.369 AU from Earth today (3.1 light-minutes).

In the sky

Right ascension
19h 44m 20s
Declination
-21° 54′ 37″
Constellation
Sagittarius
Distance from Earth
0.37 AU
Elongation from the Sun
82.71° — well clear of the Sun

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
0.968 AU
Eccentricity
0.121
Inclination
8.23°
Orbital period
348 days
Perihelion
0.851 AU
Aphelion
1.085 AU
Longitude of ascending node
11.81°
Argument of periapsis
238.16°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 5.3 LD
0.0136 AU
Tisserand (Jupiter)
6.222

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
66
Data arc
35 days
First observed
6 October 2007
Last observed
10 November 2007
Residual RMS
0.67 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
24.7

Discovery & classification

Aten Near-Earth Object

Close approaches 52 on record

Flyby geometry
Ecliptic flyby of 2007 TH3 at 2027-10-01 05:13 UTC Top-down view of the ecliptic, Earth at the centre, for the 2027-10-01 05:13 UTC close approach of 2007 TH3. Catalogue miss distance 19.0 LD · 7.32 × 10⁶ km. The curve is the geocentric path from 2027-09-28 to 2027-10-04, 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 19.0 LD · 7.32 × 10⁶ km 2027-10-01 05:13 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2027-10-01 05:13 UTC close approach of 2007 TH3. Catalogue miss distance 19.0 LD · 7.32 × 10⁶ km. The curve is the geocentric path from 2027-09-28 to 2027-10-04, 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
2026-10-08 07:39:00 Earth 0.337 AU 131.2 LD 14.7 km/s
2027-10-01 05:13:00 Earth 0.0489 AU 19.0 LD 6.7 km/s
2028-06-30 17:28:00 Earth 0.2041 AU 79.4 LD 4.5 km/s
2028-12-06 07:29:00 Earth 0.1704 AU 66.3 LD 4 km/s
2029-04-09 09:39:00 Earth 0.1284 AU 50.0 LD 5.5 km/s
2030-02-21 01:19:00 Earth 0.1635 AU 63.6 LD 9.1 km/s
2031-02-04 18:36:00 Earth 0.432 AU 168.1 LD 17.3 km/s
2047-10-06 19:40:00 Earth 0.2827 AU 110.0 LD 13.1 km/s
2048-09-30 21:36:00 Earth 0.0142 AU 5.5 LD 5.8 km/s
2049-06-17 05:59:00 Earth 0.2045 AU 79.6 LD 4.9 km/s

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

Sources