| Date | Miss Distance | Speed |
|---|---|---|
| July 16, 1902 | 0.1881 AU (28.1 million km) | 19.3 km/s |
| August 17, 1910 | 0.0416 AU (6.2 million km) | 20.1 km/s |
| November 5, 1912 | 0.0913 AU (13.7 million km) | 30.0 km/s |
| February 7, 1936 | 0.0148 AU (2.2 million km) | 24.6 km/s |
| July 10, 1943 | 0.0773 AU (11.6 million km) | 22.6 km/s |
| March 19, 1964 | 0.0396 AU (5.9 million km) | 27.7 km/s |
| January 31, 1977 | 0.1449 AU (21.7 million km) | 20.4 km/s |
| August 5, 1979 | 0.0499 AU (7.5 million km) | 28.1 km/s |
| July 9, 1984 | 0.0447 AU (6.7 million km) | 23.6 km/s |
| June 29, 2002 | 0.1610 AU (24.1 million km) | 29.5 km/s |
| July 4, 2020 | 0.0841 AU (12.6 million km) | 29.7 km/s |
| November 26, 2035 | 0.0342 AU (5.1 million km) | 24.6 km/s |
| February 7, 2036 | 0.0357 AU (5.3 million km) | 23.8 km/s |
| July 16, 2043 | 0.1492 AU (22.3 million km) | 20.4 km/s |
| April 17, 2051 | 0.0837 AU (12.5 million km) | 21.9 km/s |
| July 1, 2061 | 0.1242 AU (18.6 million km) | 28.4 km/s |
| May 22, 2069 | 0.1019 AU (15.2 million km) | 21.0 km/s |
| February 16, 2077 | 0.1760 AU (26.3 million km) | 30.1 km/s |
| October 11, 2084 | 0.0500 AU (7.5 million km) | 23.5 km/s |
| February 1, 2095 | 0.1536 AU (23.0 million km) | 20.2 km/s |
| February 26, 2100 | 0.0810 AU (12.1 million km) | 22.0 km/s |
| July 10, 2102 | 0.0195 AU (2.9 million km) | 24.6 km/s |
| July 17, 2115 | 0.0590 AU (8.8 million km) | 23.0 km/s |
| November 30, 2130 | 0.0903 AU (13.5 million km) | 21.6 km/s |
| February 3, 2136 | 0.1383 AU (20.7 million km) | 20.6 km/s |
| July 10, 2143 | 0.0222 AU (3.3 million km) | 24.4 km/s |
| August 1, 2143 | 0.1179 AU (17.6 million km) | 20.3 km/s |
| April 14, 2146 | 0.1350 AU (20.2 million km) | 19.5 km/s |
| December 19, 2158 | 0.1333 AU (19.9 million km) | 19.7 km/s |
| September 3, 2161 | 0.0982 AU (14.7 million km) | 21.2 km/s |
| January 20, 2177 | 0.0849 AU (12.7 million km) | 21.8 km/s |
| February 9, 2177 | 0.0225 AU (3.4 million km) | 24.1 km/s |
| July 14, 2184 | 0.0902 AU (13.5 million km) | 22.2 km/s |
| July 22, 2189 | 0.0333 AU (5.0 million km) | 19.0 km/s |
| September 15, 2189 | 0.0544 AU (8.1 million km) | 23.6 km/s |
| April 18, 2200 | 0.0900 AU (13.5 million km) | 21.0 km/s |
2101 Adonis (1936 CA) 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.
Asteroid
2101 Adonis is an asteroid on an extremely eccentric orbit, classified as a potentially hazardous asteroid and near-Earth object of the Apollo group. Adonis measures approximately 0.6ย km in diameter. Discovered by Eugรจne Delporte at Uccle in 1936, it became a lost asteroid until 1977. It may also be an extinct comet and a source of meteor showers. It was named after Adonis from Greek mythology.
2101 Adonis (1936 CA) 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 2101 Adonis (1936 CA) is 0.1881 AU (28.1 million km) on July 16, 1902, at a speed of approximately 19.3 km/s.
2101 Adonis (1936 CA) has an estimated diameter of 0.786 km (486โ1087 meters range). Its absolute magnitude (H) is 18.69, which NASA uses along with assumed albedo to estimate size.