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Asteroid Near-Earth

2021 TE3

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(2021 TE3)

Where is it now

Distance from Sun
0.93 AU
True anomaly
263.69°
Distance from Earth
1.656 AU
As of
22 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 — 0.995 AU from the Sun Earth 2021 TE3 — 0.93 AU from the Sun 2021 TE3
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2021 TE3 is 1.656 AU from Earth today (13.8 light-minutes).

In the sky

Right ascension
12h 04m 01s
Declination
+01° 44′ 39″
Constellation
Virgo
Distance from Earth
1.65 AU
Elongation from the Sun
29.51° — 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
0.945 AU
Eccentricity
0.191
Inclination
5.83°
Orbital period
335.5 days
Perihelion
0.764 AU
Aphelion
1.125 AU
Longitude of ascending node
5.96°
Argument of periapsis
238.22°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.7 LD
0.0044 AU
Tisserand (Jupiter)
6.339

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
14
Data arc
5 days
First observed
30 September 2021
Last observed
5 October 2021
Residual RMS
0.64 ″
Solution · Otto Matic
5 October 2021

Visual & observation

Absolute magnitude (H)
28.03

Discovery & classification

Aten Near-Earth Object

Close approaches 89 on record

Flyby geometry
Ecliptic flyby of 2021 TE3 at 2032-09-28 17:49 UTC Top-down view of the ecliptic, Earth at the centre, for the 2032-09-28 17:49 UTC close approach of 2021 TE3. Catalogue miss distance 51.2 LD · 1.97 × 10⁷ km. The curve is the geocentric path from 2032-09-25 to 2032-10-01, 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 51.2 LD · 1.97 × 10⁷ km 2032-09-28 17:49 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2032-09-28 17:49 UTC close approach of 2021 TE3. Catalogue miss distance 51.2 LD · 1.97 × 10⁷ km. The curve is the geocentric path from 2032-09-25 to 2032-10-01, 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
2032-09-28 17:49:00 Earth 0.1315 AU 51.2 LD 10.3 km/s
2033-06-25 02:40:00 Earth 0.2536 AU 98.7 LD 7.2 km/s
2033-12-24 22:08:00 Earth 0.1605 AU 62.5 LD 4.6 km/s
2034-03-17 04:49:00 Earth 0.1636 AU 63.7 LD 5.4 km/s
2035-01-22 14:41:00 Earth 0.3522 AU 137.1 LD 16.7 km/s
2043-10-05 16:31:00 Earth 0.3108 AU 120.9 LD 15.6 km/s
2044-08-13 04:31:00 Earth 0.1892 AU 73.6 LD 4 km/s
2044-11-01 13:45:00 Earth 0.1445 AU 56.2 LD 5 km/s
2045-04-27 21:03:00 Earth 0.2367 AU 92.1 LD 7.5 km/s
2046-01-30 22:08:00 Earth 0.1733 AU 67.4 LD 11 km/s

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

Sources