| Date | Miss Distance | Speed |
|---|---|---|
| September 8, 1911 | 0.0256 AU (3.8 million km) | 23.2 km/s |
| September 13, 1935 | 0.1094 AU (16.4 million km) | 24.6 km/s |
| August 5, 1942 | 0.0595 AU (8.9 million km) | 16.8 km/s |
| September 4, 1972 | 0.0672 AU (10.0 million km) | 22.3 km/s |
| September 14, 1996 | 0.1466 AU (21.9 million km) | 25.3 km/s |
| August 28, 2009 | 0.1942 AU (29.1 million km) | 21.2 km/s |
| September 8, 2033 | 0.0303 AU (4.5 million km) | 23.4 km/s |
| September 7, 2051 | 0.0641 AU (9.6 million km) | 16.6 km/s |
| September 8, 2070 | 0.0251 AU (3.8 million km) | 23.3 km/s |
| September 16, 2107 | 0.1462 AU (21.9 million km) | 25.2 km/s |
| September 3, 2120 | 0.0966 AU (14.5 million km) | 22.0 km/s |
| September 11, 2157 | 0.0583 AU (8.7 million km) | 23.8 km/s |
| April 18, 2168 | 0.0774 AU (11.6 million km) | 16.4 km/s |
| February 28, 2170 | 0.0794 AU (11.9 million km) | 17.4 km/s |
| August 31, 2170 | 0.1596 AU (23.9 million km) | 21.4 km/s |
8566 (1996 EN) is classified as a Potentially Hazardous Asteroid (PHA) because it is estimated to be larger than 140 meters and its orbit comes within 0.05 AU of Earth. NASA continuously monitors this object for any future impact risk. Current data does not indicate a confirmed impact event.
8566 (1996 EN) is classified as a potentially hazardous asteroid (PHA) by NASA. This means it is large enough and its orbit brings it close enough to Earth to warrant close monitoring. However, a PHA classification does not mean an impact is imminent.
The closest recorded Earth approach of 8566 (1996 EN) is 0.0256 AU (3.8 million km) on September 8, 1911, at a speed of approximately 23.2 km/s.
8566 (1996 EN) has an estimated diameter of 2.19 km (1351โ3020 meters range). Its absolute magnitude (H) is 16.47, which NASA uses along with assumed albedo to estimate size.