2020 CD3 is an asteroid in the Apollo orbit class. Its orbit takes it from 1.02 AU to 1.04 AU from the Sun; one orbit takes 381.3 days. Orbit from the JPL solution of 25 June 2021.
Where is it now
- Distance from Sun
- 1.042 AU
- True anomaly
- 171.97°
- Distance from Earth
- 1.526 AU
- As of
- 3 November 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.
In the sky
- Right ascension
- 17h 36m 56s
- Declination
- -23° 37′ 35″
- Constellation
- Ophiuchus
- Distance from Earth
- 1.53 AU
- Elongation from the Sun
- 42.6° — 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.
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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
- 1.029 AU
- Eccentricity
- 0.0124
- Inclination
- 0.63°
- Orbital period
- 381.3 days
- Perihelion
- 1.016 AU
- Aphelion
- 1.042 AU
- Longitude of ascending node
- 82.25°
- Argument of periapsis
- 49.9°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 8.2 LD
- 0.0211 AU
- Tisserand (Jupiter)
- 5.946
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 128
- Data arc
- 742 days
- First observed
- 9 May 2018
- Last observed
- 20 May 2020
- Residual RMS
- 0.64 ″
- Solution · Otto Matic
- 25 June 2021
Visual & observation
- Absolute magnitude (H)
- 31.74
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Close approaches 61 on record
Top-down view of the ecliptic, Earth at the centre, for the 2044-03-20 10:43 UTC close approach of 2020 CD3. Catalogue miss distance 9.51 LD · 3.66 × 10⁶ km. The curve is the geocentric path from 2044-03-17 to 2044-03-23, 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.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2044-03-20 10:43:00 | Earth | 0.0244 AU | 9.5 LD | 0.2 km/s |
| 2061-08-20 04:39:00 | Earth | 0.0332 AU | 12.9 LD | 0.4 km/s |
| 2082-06-12 18:46:00 | Moon | 0.0053 AU | 2.1 LD | 0.9 km/s |
| 2082-08-30 00:17:00 | Moon | 0.0089 AU | 3.5 LD | 1 km/s |
| 2083-01-26 17:00:00 | Moon | 0.0057 AU | 2.2 LD | 1 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB