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Asteroid Near-Earth

2023 SC1

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(2023 SC1)

Where is it now

Distance from Sun
1.157 AU
True anomaly
211.35°
Distance from Earth
0.411 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 2023 SC1 — 1.157 AU from the Sun 2023 SC1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 SC1 is 0.411 AU from Earth today (3.4 light-minutes).

In the sky

Right ascension
07h 04m 43s
Declination
-01° 01′ 44″
Constellation
Monoceros
Distance from Earth
0.41 AU
Elongation from the Sun
102.69° — 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
0.972 AU
Eccentricity
0.2474
Inclination
12°
Orbital period
349.8 days
Perihelion
0.731 AU
Aphelion
1.212 AU
Longitude of ascending node
187.94°
Argument of periapsis
11.36°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 60.0 LD
0.1543 AU
Tisserand (Jupiter)
6.174

Orbit quality

Orbit very well determined (uncertainty code 2).

Observations used
41
Data arc
3.25 years
First observed
15 August 2022
Last observed
15 November 2025
Residual RMS
0.57 ″
Solution · Otto Matic
18 November 2025

Visual & observation

Absolute magnitude (H)
23.79

Discovery & classification

Aten Near-Earth Object

Close approaches 24 on record

Flyby geometry
Ecliptic flyby of 2023 SC1 at 2045-09-05 06:31 UTC Top-down view of the ecliptic, Earth at the centre, for the 2045-09-05 06:31 UTC close approach of 2023 SC1. Catalogue miss distance 62.9 LD · 2.42 × 10⁷ km. The curve is the geocentric path from 2045-09-02 to 2045-09-08, 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 north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 62.9 LD · 2.42 × 10⁷ km 2045-09-05 06:31 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2045-09-05 06:31 UTC close approach of 2023 SC1. Catalogue miss distance 62.9 LD · 2.42 × 10⁷ km. The curve is the geocentric path from 2045-09-02 to 2045-09-08, 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 north 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
2033-11-13 09:08:00 Venus 0.0098 AU 3.8 LD 9.6 km/s
2042-06-25 06:28:00 Venus 0.0096 AU 3.7 LD 9.6 km/s
2045-09-05 06:31:00 Earth 0.1617 AU 62.9 LD 8 km/s
2051-02-02 12:01:00 Venus 0.0193 AU 7.5 LD 9.6 km/s

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

Sources