138971 (2001 CB21)
Gate C19. Data: NASA/JPL-Caltech, presented by Arrivals.earth.
Object
- Designation
- 138971
- Kind
- asteroid
- Orbit class
- APO
- Gate
- C19
- Classification
- SOLAR
- Potentially hazardous
- yes
- Absolute magnitude (H)
- 18.54
- Rotation period (h)
- 3.303
Orbital elements
- Eccentricity (e)
- 0.3333
- Semi-major axis (au)
- 1.034
- Perihelion distance (au)
- 0.689
- Inclination (deg)
- 7.92
- Ascending node (deg)
- 353.64
- Argument of perihelion (deg)
- 271.95
- Mean anomaly (deg)
- 318.62
- Epoch (JD)
- 2461200.5
- Period (days)
- 384
- Earth MOID (au)
- 0.0237
- Observation arc (days)
- 9227
- Observations used
- 2655
- First observed
- 2001-02-02
- Last observed
- 2026-05-09
Close approaches to Earth
| Time (UTC, 3-sigma uncertainty applies) | Distance (au) | Relative velocity (km/s) |
|---|
| 2026-09-29 07:18:00 | 0.0541 | 10.23 |
JPL Small-Body Database record