2024 YH4 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.95 AU to 1.09 AU from the Sun; one orbit takes 376.4 days. Orbit from the JPL solution of 13 July 2026.
Where is it now
- Distance from Sun
- 1.092 AU
- True anomaly
- 177.04°
- Distance from Earth
- 0.746 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
- 16h 48m 29s
- Declination
- +56° 00′ 52″
- Constellation
- Draco
- Distance from Earth
- 0.74 AU
- Elongation from the Sun
- 76.5° — 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
- 1.02 AU
- Eccentricity
- 0.0705
- Inclination
- 43.93°
- Orbital period
- 376.4 days
- Perihelion
- 0.948 AU
- Aphelion
- 1.092 AU
- Longitude of ascending node
- 288.26°
- Argument of periapsis
- 289.83°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 9.8 LD
- 0.0252 AU
- Tisserand (Jupiter)
- 5.736
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 66
- Data arc
- 565 days
- First observed
- 24 December 2024
- Last observed
- 12 July 2026
- Residual RMS
- 0.37 ″
- Solution · Otto Matic
- 13 July 2026
Visual & observation
- Absolute magnitude (H)
- 22.59
Discovery & classification
Close approaches 36 on record
Top-down view of the ecliptic, Earth at the centre, for the 2027-07-15 14:55 UTC close approach of 2024 YH4. Catalogue miss distance 45.1 LD · 1.73 × 10⁷ km. The curve is the geocentric path from 2027-07-12 to 2027-07-18, 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. At closest approach the object is south of the ecliptic. 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 |
|---|---|---|---|---|
| 2027-07-15 14:55:00 | Earth | 0.1158 AU | 45.1 LD | 22.9 km/s |
| 2059-01-09 00:41:00 | Earth | 0.0634 AU | 24.7 LD | 22.4 km/s |
| 2060-01-12 17:16:00 | Earth | 0.1534 AU | 59.7 LD | 22.2 km/s |
| 2060-07-09 14:46:00 | Earth | 0.0375 AU | 14.6 LD | 22.3 km/s |
| 2061-07-16 11:35:00 | Earth | 0.1471 AU | 57.2 LD | 23.2 km/s |
| 2093-01-07 13:14:00 | Earth | 0.0988 AU | 38.4 LD | 22.6 km/s |
| 2094-01-11 07:56:00 | Earth | 0.104 AU | 40.5 LD | 22.2 km/s |
| 2094-07-08 02:10:00 | Earth | 0.0889 AU | 34.6 LD | 22.3 km/s |
| 2095-07-14 20:43:00 | Earth | 0.0898 AU | 35.0 LD | 22.8 km/s |
| 2127-01-07 21:09:00 | Earth | 0.1523 AU | 59.3 LD | 23.1 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