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Asteroid Near-Earth

2016 CH30

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(2016 CH30)

Where is it now

Distance from Sun
1.078 AU
True anomaly
205.41°
Distance from Earth
1.238 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 2016 CH30 — 1.078 AU from the Sun 2016 CH30
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2016 CH30 is 1.238 AU from Earth today (10.3 light-minutes).

In the sky

Right ascension
10h 19m 16s
Declination
+10° 51′ 31″
Constellation
Leo
Distance from Earth
1.23 AU
Elongation from the Sun
56.54° — 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
0.934 AU
Eccentricity
0.1787
Inclination
0.49°
Orbital period
329.8 days
Perihelion
0.767 AU
Aphelion
1.101 AU
Longitude of ascending node
345.82°
Argument of periapsis
270.32°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.5 LD
0.0038 AU
Tisserand (Jupiter)
6.404

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
43
Data arc
9.02 years
First observed
17 January 2016
Last observed
22 January 2025
Residual RMS
0.5 ″
Solution · Otto Matic
1 February 2025

Visual & observation

Absolute magnitude (H)
27.88

Discovery & classification

Aten Near-Earth Object

Close approaches 48 on record

Flyby geometry
Ecliptic flyby of 2016 CH30 at 2033-08-10 18:10 UTC Top-down view of the ecliptic, Earth at the centre, for the 2033-08-10 18:10 UTC close approach of 2016 CH30. Catalogue miss distance 74.1 LD · 2.85 × 10⁷ km. The curve is the geocentric path from 2033-08-07 to 2033-08-13, 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 approximate: a two-body Kepler propagation of the catalogue orbital elements, not a numerical integration. The Moon’s position is approximate. The inset is a heliocentric view and is approximate. approximate Sun 74.1 LD · 2.85 × 10⁷ km 2033-08-10 18:10 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2033-08-10 18:10 UTC close approach of 2016 CH30. Catalogue miss distance 74.1 LD · 2.85 × 10⁷ km. The curve is the geocentric path from 2033-08-07 to 2033-08-13, 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 approximate: a two-body Kepler propagation of the catalogue orbital elements, not a numerical integration. The Moon’s position is approximate. The inset is a heliocentric view and is approximate.

When (UTC) Body Distance Lunar distances Relative speed
2033-08-10 18:10:00 Earth 0.1903 AU 74.1 LD 4.9 km/s
2033-12-08 05:43:00 Earth 0.1159 AU 45.1 LD 4.5 km/s
2034-04-13 04:23:00 Earth 0.195 AU 75.9 LD 5.3 km/s
2038-11-27 18:38:00 Venus 0.1289 AU 50.2 LD 6.8 km/s
2042-10-14 16:47:00 Earth 0.0377 AU 14.7 LD 4.4 km/s
2051-10-11 05:51:00 Earth 0.0293 AU 11.4 LD 6.4 km/s
2052-06-07 03:29:00 Venus 0.0807 AU 31.4 LD 4.5 km/s
2053-02-06 13:12:00 Earth 0.1188 AU 46.2 LD 9.1 km/s
2062-01-04 12:57:00 Earth 0.1026 AU 39.9 LD 4.3 km/s
2067-10-22 11:42:00 Venus 0.0449 AU 17.5 LD 3.1 km/s

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

Sources