2009 DA43 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.9 AU to 1.14 AU from the Sun; one orbit takes 374.5 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.107 AU
- True anomaly
- 217.1°
- Distance from Earth
- 2.089 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
- 14h 59m 50s
- Declination
- -13° 29′ 46″
- Constellation
- Libra
- Distance from Earth
- 2.09 AU
- Elongation from the Sun
- 5.82° — too close to the Sun to observe
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.
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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
- 1.017 AU
- Eccentricity
- 0.1186
- Inclination
- 6.71°
- Orbital period
- 374.5 days
- Perihelion
- 0.896 AU
- Aphelion
- 1.137 AU
- Longitude of ascending node
- 157.84°
- Argument of periapsis
- 215.55°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 32.3 LD
- 0.0829 AU
- Tisserand (Jupiter)
- 5.989
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 31
- Data arc
- 21 days
- First observed
- 26 February 2009
- Last observed
- 19 March 2009
- Residual RMS
- 0.57 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 24.6
Discovery & classification
Close approaches 53 on record
Top-down view of the ecliptic, Earth at the centre, for the 2044-06-11 04:14 UTC close approach of 2009 DA43. Catalogue miss distance 174.8 LD · 6.72 × 10⁷ km. The curve is the geocentric path from 2044-06-08 to 2044-06-14, 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 |
|---|---|---|---|---|
| 2044-06-11 04:14:00 | Earth | 0.4492 AU | 174.8 LD | 16.5 km/s |
| 2045-06-20 04:47:00 | Earth | 0.2992 AU | 116.4 LD | 12 km/s |
| 2046-07-02 04:39:00 | Earth | 0.1593 AU | 62.0 LD | 7.6 km/s |
| 2051-01-09 08:40:00 | Earth | 0.1283 AU | 49.9 LD | 6.5 km/s |
| 2052-01-11 08:01:00 | Earth | 0.2646 AU | 103.0 LD | 11.2 km/s |
| 2053-01-16 01:51:00 | Earth | 0.4192 AU | 163.1 LD | 16 km/s |
| 2084-06-15 22:39:00 | Earth | 0.3643 AU | 141.8 LD | 14 km/s |
| 2085-06-26 10:45:00 | Earth | 0.2139 AU | 83.2 LD | 9.4 km/s |
| 2091-01-09 17:24:00 | Earth | 0.2234 AU | 86.9 LD | 9.8 km/s |
| 2092-01-15 02:54:00 | Earth | 0.3802 AU | 148.0 LD | 14.9 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