Skip to content
Public Universe
Asteroid Near-Earth

2023 TC7

Add to an observing list or journal →

(2023 TC7)

Where is it now

Distance from Sun
0.831 AU
True anomaly
323.61°
Distance from Earth
1.031 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 2023 TC7 — 0.831 AU from the Sun 2023 TC7
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 TC7 is 1.031 AU from Earth today (8.6 light-minutes).

In the sky

Right ascension
11h 07m 59s
Declination
+14° 18′ 53″
Constellation
Leo
Distance from Earth
1.04 AU
Elongation from the Sun
48.22° — 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
0.964 AU
Eccentricity
0.1609
Inclination
10.28°
Orbital period
345.7 days
Perihelion
0.809 AU
Aphelion
1.119 AU
Longitude of ascending node
20.28°
Argument of periapsis
113.39°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.5 LD
0.0039 AU
Tisserand (Jupiter)
6.233

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
115
Data arc
4 days
First observed
11 October 2023
Last observed
15 October 2023
Residual RMS
0.37 ″
Solution · Otto Matic
19 November 2023

Visual & observation

Absolute magnitude (H)
26.89

Discovery & classification

Aten Near-Earth Object

Close approaches 72 on record

Flyby geometry
Ecliptic flyby of 2023 TC7 at 2039-05-24 01:51 UTC Top-down view of the ecliptic, Earth at the centre, for the 2039-05-24 01:51 UTC close approach of 2023 TC7. Catalogue miss distance 79.0 LD · 3.04 × 10⁷ km. The curve is the geocentric path from 2039-05-21 to 2039-05-27, 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 79.0 LD · 3.04 × 10⁷ km 2039-05-24 01:51 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2039-05-24 01:51 UTC close approach of 2023 TC7. Catalogue miss distance 79.0 LD · 3.04 × 10⁷ km. The curve is the geocentric path from 2039-05-21 to 2039-05-27, 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
2030-09-29 21:33:00 Venus 0.1325 AU 51.6 LD 5.4 km/s
2039-05-24 01:51:00 Earth 0.2031 AU 79.0 LD 10.5 km/s
2040-04-03 23:26:00 Earth 0.1419 AU 55.2 LD 6.6 km/s
2040-08-26 13:46:00 Earth 0.2002 AU 77.9 LD 5.1 km/s
2041-01-04 15:58:00 Earth 0.2289 AU 89.1 LD 4.8 km/s
2041-10-13 00:26:00 Earth 0.0926 AU 36.0 LD 8.7 km/s
2042-09-30 09:55:00 Earth 0.4237 AU 164.9 LD 17.8 km/s
2043-01-18 09:56:00 Venus 0.13 AU 50.6 LD 5.4 km/s
2056-06-04 17:50:00 Earth 0.3552 AU 138.2 LD 14.9 km/s
2057-05-05 19:58:00 Earth 0.1016 AU 39.6 LD 7.3 km/s

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

Sources