2022 SD29 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.91 AU to 1.15 AU from the Sun; one orbit takes 380.5 days. Orbit from the JPL solution of 22 December 2022.
Where is it now
- Distance from Sun
- 0.998 AU
- True anomaly
- 81.64°
- Distance from Earth
- 0.978 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
- 18h 57m 02s
- Declination
- -23° 34′ 50″
- Constellation
- Sagittarius
- Distance from Earth
- 0.98 AU
- Elongation from the Sun
- 60.93° — well clear of the Sun
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
- 1.028 AU
- Eccentricity
- 0.1142
- Inclination
- 4.17°
- Orbital period
- 380.5 days
- Perihelion
- 0.91 AU
- Aphelion
- 1.145 AU
- Longitude of ascending node
- 353.82°
- Argument of periapsis
- 266.94°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 2.7 LD
- 0.0069 AU
- Tisserand (Jupiter)
- 5.944
Orbit quality
Orbit reasonably well determined (uncertainty code 3).
- Observations used
- 24
- Data arc
- 58 days
- First observed
- 22 September 2022
- Last observed
- 19 November 2022
- Residual RMS
- 0.63 ″
- Solution · Otto Matic
- 22 December 2022
Visual & observation
- Absolute magnitude (H)
- 26.48
Discovery & classification
Close approaches 36 on record
Top-down view of the ecliptic, Earth at the centre, for the 2044-03-02 10:45 UTC close approach of 2022 SD29. Catalogue miss distance 157.6 LD · 6.06 × 10⁷ km. The curve is the geocentric path from 2044-02-28 to 2044-03-05, 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 |
|---|---|---|---|---|
| 2044-03-02 10:45:00 | Earth | 0.405 AU | 157.6 LD | 16.2 km/s |
| 2045-03-13 05:07:00 | Earth | 0.145 AU | 56.4 LD | 8.5 km/s |
| 2046-02-23 05:22:00 | Earth | 0.1114 AU | 43.4 LD | 2.8 km/s |
| 2046-05-02 01:20:00 | Earth | 0.1048 AU | 40.8 LD | 3.1 km/s |
| 2046-12-04 21:09:00 | Earth | 0.1762 AU | 68.6 LD | 4 km/s |
| 2047-09-10 04:09:00 | Earth | 0.0347 AU | 13.5 LD | 3.6 km/s |
| 2048-09-19 13:58:00 | Earth | 0.2078 AU | 80.9 LD | 10.2 km/s |
| 2049-09-29 14:34:00 | Earth | 0.4486 AU | 174.6 LD | 17.3 km/s |
| 2070-02-26 05:07:00 | Earth | 0.4781 AU | 186.1 LD | 18.4 km/s |
| 2071-03-08 12:13:00 | Earth | 0.2346 AU | 91.3 LD | 11.1 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