2008 UC202 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.94 AU to 1.08 AU from the Sun; one orbit takes 371.2 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.08 AU
- True anomaly
- 182.81°
- Distance from Earth
- 1.456 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 56m 06s
- Declination
- -28° 55′ 58″
- Constellation
- Sagittarius
- Distance from Earth
- 1.46 AU
- Elongation from the Sun
- 47.85° — 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
- 1.011 AU
- Eccentricity
- 0.0686
- Inclination
- 7.45°
- Orbital period
- 371.2 days
- Perihelion
- 0.941 AU
- Aphelion
- 1.08 AU
- Longitude of ascending node
- 37.3°
- Argument of periapsis
- 91.97°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 1.0 LD
- 0.0026 AU
- Tisserand (Jupiter)
- 6.02
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 21
- Data arc
- 3 days
- First observed
- 31 October 2008
- Last observed
- 3 November 2008
- Residual RMS
- 0.55 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 28.3
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Close approaches 29 on record
Top-down view of the ecliptic, Earth at the centre, for the 2068-10-20 16:34 UTC close approach of 2008 UC202. Catalogue miss distance 178.2 LD · 6.85 × 10⁷ km. The curve is the geocentric path from 2068-10-17 to 2068-10-23, 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. 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 |
|---|---|---|---|---|
| 2068-10-20 16:34:00 | Earth | 0.4579 AU | 178.2 LD | 15.8 km/s |
| 2069-10-25 04:10:00 | Earth | 0.3592 AU | 139.8 LD | 12.9 km/s |
| 2070-10-29 08:50:00 | Earth | 0.2615 AU | 101.8 LD | 10.2 km/s |
| 2071-11-01 14:54:00 | Earth | 0.1656 AU | 64.4 LD | 7.6 km/s |
| 2072-11-02 12:42:00 | Earth | 0.0751 AU | 29.2 LD | 5.4 km/s |
| 2073-11-01 19:31:00 | Earth | 0.0135 AU | 5.2 LD | 4.2 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