| Date | Miss Distance | Speed |
|---|---|---|
| March 31, 1902 | 0.0402 AU (6.0 million km) | 15.3 km/s |
| November 4, 1912 | 0.1577 AU (23.6 million km) | 16.4 km/s |
| February 20, 1915 | 0.1559 AU (23.3 million km) | 9.4 km/s |
| January 23, 1921 | 0.0612 AU (9.2 million km) | 13.8 km/s |
| November 5, 1935 | 0.1505 AU (22.5 million km) | 16.1 km/s |
| February 20, 1938 | 0.1556 AU (23.3 million km) | 9.4 km/s |
| February 3, 1961 | 0.1870 AU (28.0 million km) | 9.9 km/s |
| January 20, 1984 | 0.1992 AU (29.8 million km) | 10.2 km/s |
| January 21, 2007 | 0.1982 AU (29.6 million km) | 10.1 km/s |
| November 3, 2027 | 0.1911 AU (28.6 million km) | 17.4 km/s |
| February 11, 2030 | 0.1741 AU (26.0 million km) | 9.7 km/s |
| November 10, 2050 | 0.1057 AU (15.8 million km) | 14.1 km/s |
| March 9, 2053 | 0.0966 AU (14.5 million km) | 10.1 km/s |
| November 13, 2073 | 0.0914 AU (13.7 million km) | 13.0 km/s |
| March 14, 2076 | 0.0679 AU (10.2 million km) | 10.8 km/s |
| November 9, 2096 | 0.1159 AU (17.3 million km) | 14.6 km/s |
| March 4, 2099 | 0.1219 AU (18.2 million km) | 9.6 km/s |
| April 9, 2103 | 0.1391 AU (20.8 million km) | 8.4 km/s |
| September 19, 2113 | 0.1165 AU (17.4 million km) | 6.5 km/s |
| November 6, 2119 | 0.1882 AU (28.2 million km) | 17.3 km/s |
| February 11, 2122 | 0.1775 AU (26.6 million km) | 9.8 km/s |
| March 2, 2124 | 0.1389 AU (20.8 million km) | 6.3 km/s |
| December 30, 2144 | 0.1927 AU (28.8 million km) | 9.7 km/s |
| April 3, 2147 | 0.1549 AU (23.2 million km) | 17.0 km/s |
| November 23, 2167 | 0.1085 AU (16.2 million km) | 10.7 km/s |
| March 23, 2170 | 0.0195 AU (2.9 million km) | 12.5 km/s |
| November 10, 2190 | 0.1322 AU (19.8 million km) | 15.1 km/s |
| February 2, 2193 | 0.1468 AU (22.0 million km) | 8.8 km/s |
| February 28, 2193 | 0.1395 AU (20.9 million km) | 9.5 km/s |
5011 Ptah (6743 P-L) 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.
Near-Earth asteroid
5011 Ptah is a near-Earth object and potentially hazardous asteroid of the Apollo group. It was discovered by astronomers with the PalomarโLeiden survey on 24 September 1960. The rare O-type asteroid on an eccentric orbit measures approximately 1.6 kilometers in diameter. It was named after the Ancient Egyptian deity Ptah.
5011 Ptah (6743 P-L) 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 5011 Ptah (6743 P-L) is 0.1577 AU (23.6 million km) on November 4, 1912, at a speed of approximately 16.4 km/s.
5011 Ptah (6743 P-L) has an estimated diameter of 2.02 km (1249โ2793 meters range). Its absolute magnitude (H) is 16.64, which NASA uses along with assumed albedo to estimate size.