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Asteroid Near-Earth Potentially hazardous

614134

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614134 (2008 TC4)

Where is it now

Distance from Sun
0.908 AU
True anomaly
223.1°
Distance from Earth
0.288 AU
As of
16 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 — 0.997 AU from the Sun Earth 614134 — 0.908 AU from the Sun 614134
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 614134 is 0.288 AU from Earth today (2.4 light-minutes).

In the sky

Right ascension
09h 25m 49s
Declination
+10° 21′ 58″
Constellation
Leo
Distance from Earth
0.29 AU
Elongation from the Sun
63.33° — well clear of the Sun

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
0.78 AU
Eccentricity
0.5544
Inclination
10.65°
Orbital period
251.8 days
Perihelion
0.348 AU
Aphelion
1.213 AU
Longitude of ascending node
212.53°
Argument of periapsis
324.36°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.4 LD
0.0035 AU
Tisserand (Jupiter)
7.301

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
180
Data arc
12.94 years
First observed
6 October 2008
Last observed
14 September 2021
Residual RMS
0.49 ″
Solution · Otto Matic
20 December 2022

Visual & observation

Absolute magnitude (H)
21.65

Discovery & classification

Discovered by
LINEAR
Discovery date
7 October 2008
Discovery site
Socorro

Also known as 2008 TC4

Aten Near-Earth Object Potentially Hazardous Asteroid

Close approaches 299 on record

Flyby geometry
Ecliptic flyby of 614134 at 2026-10-17 04:02 UTC Top-down view of the ecliptic, Earth at the centre, for the 2026-10-17 04:02 UTC close approach of 614134. Catalogue miss distance 118.5 LD · 4.56 × 10⁷ km. The curve is the geocentric path from 2026-10-14 to 2026-10-20, 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 118.5 LD · 4.56 × 10⁷ km 2026-10-17 04:02 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2026-10-17 04:02 UTC close approach of 614134. Catalogue miss distance 118.5 LD · 4.56 × 10⁷ km. The curve is the geocentric path from 2026-10-14 to 2026-10-20, 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
2026-10-17 04:02:00 Earth 0.3045 AU 118.5 LD 25 km/s
2026-12-22 09:23:00 Merc 0.0909 AU 35.4 LD 29.6 km/s
2026-12-22 09:23:00 Mercury 0.0909 AU 35.4 LD 29.6 km/s
2027-08-15 23:38:00 Merc 0.099 AU 38.5 LD 25.6 km/s
2027-08-15 23:38:00 Mercury 0.099 AU 38.5 LD 25.6 km/s
2028-10-23 12:37:00 Earth 0.0701 AU 27.3 LD 13.6 km/s
2030-09-17 11:53:00 Earth 0.2421 AU 94.2 LD 12.1 km/s
2032-06-17 21:00:00 Merc 0.0722 AU 28.1 LD 22.6 km/s
2032-06-17 21:00:00 Mercury 0.0722 AU 28.1 LD 22.6 km/s
2032-08-17 19:32:00 Earth 0.1799 AU 70.0 LD 16.1 km/s

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

Sources