2024 YP9 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.97 AU to 1.07 AU from the Sun; one orbit takes 374.2 days. Orbit from the JPL solution of 22 December 2025.
Where is it now
- Distance from Sun
- 1.066 AU
- True anomaly
- 179.33°
- Distance from Earth
- 0.122 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
- 05h 11m 12s
- Declination
- +63° 19′ 30″
- Constellation
- Camelopardalis
- Distance from Earth
- 0.12 AU
- Elongation from the Sun
- 125.13° — well clear of the Sun
Favours the northern hemisphere; low or below the horizon from far south.
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
- 1.016 AU
- Eccentricity
- 0.0488
- Inclination
- 10.34°
- Orbital period
- 374.2 days
- Perihelion
- 0.967 AU
- Aphelion
- 1.066 AU
- Longitude of ascending node
- 248.73°
- Argument of periapsis
- 336.24°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 16.7 LD
- 0.043 AU
- Tisserand (Jupiter)
- 5.988
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 82
- Data arc
- 764 days
- First observed
- 18 November 2023
- Last observed
- 21 December 2025
- Residual RMS
- 0.55 ″
- Solution · Otto Matic
- 22 December 2025
Visual & observation
- Absolute magnitude (H)
- 22.35
Discovery & classification
Close approaches 50 on record
Top-down view of the ecliptic, Earth at the centre, for the 2026-12-03 09:35 UTC close approach of 2024 YP9. Catalogue miss distance 29.0 LD · 1.12 × 10⁷ km. The curve is the geocentric path from 2026-11-30 to 2026-12-06, 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 |
|---|---|---|---|---|
| 2026-12-03 09:35:00 | Earth | 0.0745 AU | 29.0 LD | 5.6 km/s |
| 2027-06-04 05:47:00 | Earth | 0.0475 AU | 18.5 LD | 5.7 km/s |
| 2027-11-08 22:22:00 | Earth | 0.1369 AU | 53.3 LD | 5.9 km/s |
| 2028-06-28 21:31:00 | Earth | 0.1673 AU | 65.1 LD | 7.4 km/s |
| 2064-04-20 04:54:00 | Earth | 0.1957 AU | 76.2 LD | 7.4 km/s |
| 2064-12-14 08:07:00 | Earth | 0.0984 AU | 38.3 LD | 5.8 km/s |
| 2065-05-20 19:00:00 | Earth | 0.0671 AU | 26.1 LD | 5.8 km/s |
| 2065-11-22 02:03:00 | Earth | 0.0927 AU | 36.1 LD | 5.7 km/s |
| 2066-06-15 13:45:00 | Earth | 0.0945 AU | 36.8 LD | 6.2 km/s |
| 2066-10-22 20:19:00 | Earth | 0.182 AU | 70.8 LD | 5.9 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