Skip to content
Public Universe
Asteroid Near-Earth

2004 TD10

Add to an observing list or journal →

(2004 TD10)

Where is it now

Distance from Sun
1.059 AU
True anomaly
166.01°
Distance from Earth
0.575 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 2004 TD10 — 1.059 AU from the Sun 2004 TD10
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2004 TD10 is 0.575 AU from Earth today (4.8 light-minutes).

In the sky

Right ascension
18h 59m 41s
Declination
-26° 44′ 54″
Constellation
Sagittarius
Distance from Earth
0.58 AU
Elongation from the Sun
79.81° — 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
0.751 AU
Eccentricity
0.4428
Inclination
2.6°
Orbital period
237.8 days
Perihelion
0.419 AU
Aphelion
1.084 AU
Longitude of ascending node
47.88°
Argument of periapsis
137.21°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 4.6 LD
0.0118 AU
Tisserand (Jupiter)
7.608

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
166
Data arc
14.97 years
First observed
7 October 2004
Last observed
25 September 2019
Residual RMS
0.55 ″
Solution · Otto Matic
1 March 2023

Visual & observation

Absolute magnitude (H)
22.18

Discovery & classification

Aten Near-Earth Object

Close approaches 318 on record

Flyby geometry
Ecliptic flyby of 2004 TD10 at 2028-09-01 01:35 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-09-01 01:35 UTC close approach of 2004 TD10. Catalogue miss distance 60.7 LD · 2.33 × 10⁷ km. The curve is the geocentric path from 2028-08-29 to 2028-09-04, 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 60.7 LD · 2.33 × 10⁷ km 2028-09-01 01:35 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-09-01 01:35 UTC close approach of 2004 TD10. Catalogue miss distance 60.7 LD · 2.33 × 10⁷ km. The curve is the geocentric path from 2028-08-29 to 2028-09-04, 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
2027-03-19 16:15:00 Merc 0.0667 AU 26.0 LD 20.3 km/s
2027-03-19 16:15:00 Mercury 0.0667 AU 26.0 LD 20.3 km/s
2027-04-12 03:54:00 Venus 0.1095 AU 42.6 LD 21.2 km/s
2028-09-01 01:35:00 Earth 0.156 AU 60.7 LD 15 km/s
2029-01-25 23:13:00 Earth 0.4858 AU 189.1 LD 16.1 km/s
2030-09-15 16:40:00 Earth 0.0758 AU 29.5 LD 8.6 km/s
2031-09-26 08:06:00 Mercury 0.0359 AU 14.0 LD 14.7 km/s
2031-09-26 08:06:00 Merc 0.0359 AU 14.0 LD 14.7 km/s
2032-06-24 13:38:00 Earth 0.4233 AU 164.7 LD 9.1 km/s
2032-10-26 18:45:00 Earth 0.0142 AU 5.5 LD 10.3 km/s

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

Sources