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Asteroid Near-Earth

2021 CC2

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(2021 CC2)

Where is it now

Distance from Sun
0.892 AU
True anomaly
291.12°
Distance from Earth
1.706 AU
As of
21 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 CC2 — 0.892 AU from the Sun 2021 CC2
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2021 CC2 is 1.706 AU from Earth today (14.2 light-minutes).

In the sky

Right ascension
15h 25m 21s
Declination
-15° 12′ 22″
Constellation
Libra
Distance from Earth
1.7 AU
Elongation from the Sun
23.94° — near the Sun — look low at dusk or dawn

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
0.93 AU
Eccentricity
0.0918
Inclination
7.29°
Orbital period
327.5 days
Perihelion
0.844 AU
Aphelion
1.015 AU
Longitude of ascending node
142.36°
Argument of periapsis
185.1°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 10.8 LD
0.0279 AU
Tisserand (Jupiter)
6.431

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
285
Data arc
9.14 years
First observed
10 February 2012
Last observed
2 April 2021
Residual RMS
0.43 ″
Solution · Otto Matic
9 June 2026

Physical properties

Rotation period
0.22 hours

Visual & observation

Absolute magnitude (H)
22.95

Discovery & classification

Aten Near-Earth Object

Close approaches 73 on record

Flyby geometry
Ecliptic flyby of 2021 CC2 at 2029-08-27 12:33 UTC Top-down view of the ecliptic, Earth at the centre, for the 2029-08-27 12:33 UTC close approach of 2021 CC2. Catalogue miss distance 64.9 LD · 2.5 × 10⁷ km. The curve is the geocentric path from 2029-08-24 to 2029-08-30, 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 64.9 LD · 2.5 × 10⁷ km 2029-08-27 12:33 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2029-08-27 12:33 UTC close approach of 2021 CC2. Catalogue miss distance 64.9 LD · 2.5 × 10⁷ km. The curve is the geocentric path from 2029-08-24 to 2029-08-30, 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
2029-08-27 12:33:00 Earth 0.1669 AU 64.9 LD 5.9 km/s
2035-12-24 15:50:00 Venus 0.133 AU 51.7 LD 4.2 km/s
2038-01-13 10:39:00 Earth 0.1358 AU 52.9 LD 6.3 km/s
2038-07-09 02:37:00 Earth 0.1688 AU 65.7 LD 5.3 km/s
2045-10-06 16:06:00 Venus 0.1296 AU 50.4 LD 3.8 km/s
2047-02-16 16:13:00 Earth 0.0325 AU 12.7 LD 4.3 km/s
2055-08-19 19:06:00 Earth 0.169 AU 65.8 LD 6 km/s
2064-01-24 06:37:00 Earth 0.0709 AU 27.6 LD 4.7 km/s
2064-06-14 19:53:00 Earth 0.166 AU 64.6 LD 4.2 km/s
2072-10-01 05:09:00 Earth 0.1628 AU 63.3 LD 4.8 km/s

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

Sources