(2021 JA4)
Designation: 2021 JA4 | Estimated Size: 122 m
Physical Characteristics
| Primary Designation | 2021 JA4 |
|---|---|
| Full Name | (2021 JA4) |
| Estimated Diameter | 122 m (just over 10 school buses) |
| Absolute Magnitude (H) | 22.32 |
| Total Encounters in Catalog | 1 |
Keplerian Orbit View
View in Full Solar System Orrery →
Heliocentric Orbit Projection
True-scale heliocentric projection showing (2021 JA4) (blue ellipse) relative to Earth (cyan), Venus, and Mars orbits.
| Orbital Classification | APO (Near-Earth Object) |
|---|---|
| Semi-Major Axis (a) | 1.310 AU |
| Eccentricity (e) | 0.285 |
| Perihelion Distance (q) | 0.939 AU |
| Aphelion Distance (Q) | 1.690 AU |
| Orbital Period | 1.50 years |
| Orbital Inclination (i) | 25.1° |
| Potentially Hazardous Asteroid | No |
Earth Close-Approach Timeline
| Date (TDB) | Nominal Distance | Lunar Distances | Velocity | Inside Moon? | Details |
|---|---|---|---|---|---|
| 2026-Nov-03 21:00 | 8,650,000 km | 22.5 LD | 14.3272152194655 km/s | No | View Encounter |