2024 XH9 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.93 AU to 1.13 AU from the Sun; one orbit takes 383.5 days. Orbit from the JPL solution of 7 December 2024.
Where is it now
- Distance from Sun
- 1.067 AU
- True anomaly
- 115.36°
- Distance from Earth
- 0.48 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
- 20h 33m 44s
- Declination
- -11° 54′ 23″
- Constellation
- Capricornus
- Distance from Earth
- 0.48 AU
- Elongation from the Sun
- 85.55° — well clear of the Sun
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
- 1.033 AU
- Eccentricity
- 0.0954
- Inclination
- 4.63°
- Orbital period
- 383.5 days
- Perihelion
- 0.935 AU
- Aphelion
- 1.132 AU
- Longitude of ascending node
- 235.81°
- Argument of periapsis
- 23.57°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 20.5 LD
- 0.0527 AU
- Tisserand (Jupiter)
- 5.921
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 14
- Data arc
- 10 days
- First observed
- 27 November 2024
- Last observed
- 7 December 2024
- Residual RMS
- 0.75 ″
- Solution · Otto Matic
- 7 December 2024
Visual & observation
- Absolute magnitude (H)
- 25.64
Discovery & classification
Close approaches 38 on record
Top-down view of the ecliptic, Earth at the centre, for the 2045-11-18 12:12 UTC close approach of 2024 XH9. Catalogue miss distance 53.6 LD · 2.06 × 10⁷ km. The curve is the geocentric path from 2045-11-15 to 2045-11-21, 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 |
|---|---|---|---|---|
| 2045-11-18 12:12:00 | Earth | 0.1378 AU | 53.6 LD | 4.1 km/s |
| 2046-09-12 16:02:00 | Earth | 0.1242 AU | 48.3 LD | 6.2 km/s |
| 2065-03-25 05:28:00 | Earth | 0.1235 AU | 48.0 LD | 6.6 km/s |
| 2066-01-06 03:38:00 | Earth | 0.1515 AU | 59.0 LD | 3.8 km/s |
| 2066-07-02 00:41:00 | Earth | 0.0947 AU | 36.9 LD | 3.5 km/s |
| 2066-10-19 01:18:00 | Earth | 0.1066 AU | 41.5 LD | 3.4 km/s |
| 2086-03-29 15:51:00 | Earth | 0.086 AU | 33.5 LD | 5.4 km/s |
| 2086-12-26 22:25:00 | Earth | 0.1526 AU | 59.4 LD | 4 km/s |
| 2107-03-22 02:27:00 | Earth | 0.1753 AU | 68.2 LD | 8.3 km/s |
| 2109-09-14 11:20:00 | Earth | 0.1556 AU | 60.6 LD | 7.3 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