(2004 ER21)
Gate D16. Data: NASA/JPL-Caltech, presented by Arrivals.earth.
Object
- Designation
- 2004 ER21
- Kind
- asteroid
- Orbit class
- ATE
- Gate
- D16
- Classification
- SOLAR
- Absolute magnitude (H)
- 24.4
Orbital elements
- Eccentricity (e)
- 0.171
- Semi-major axis (au)
- 0.899
- Perihelion distance (au)
- 0.745
- Inclination (deg)
- 7.95
- Ascending node (deg)
- 357.25
- Argument of perihelion (deg)
- 343.53
- Mean anomaly (deg)
- 219.02
- Epoch (JD)
- 2461200.5
- Period (days)
- 311
- Earth MOID (au)
- 0.0408
- Observation arc (days)
- 10
- Observations used
- 70
- First observed
- 2004-03-15
- Last observed
- 2004-03-25
Close approaches to Earth
| Time (UTC, 3-sigma uncertainty applies) | Distance (au) | Relative velocity (km/s) |
|---|
| 2027-01-20 05:26:00 | 0.1379 | 6.52 |
| 2027-07-14 03:27:00 | 0.2578 | 6.75 |
JPL Small-Body Database record