5011 Ptah
| Discovery | |
|---|---|
| Discovered by | Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels |
| Discovery date | September 24, 1960 |
| Designations | |
Named after | Ptah |
| 6743 P-L | |
| Apollo Mars crosser | |
| Orbital characteristics | |
| Epoch January 1, 2007 (JD 2488070.5) | |
| Aphelion | 2.450 AU (366.546 Gm) |
| Perihelion | 0.818 AU (122.318 Gm) |
| 1.634 AU | |
| Eccentricity | 0.500 |
| 2.092 a (763.949 d) | |
Average orbital speed | 45.471 km/s |
| 159.679° | |
| Inclination | 7.425° |
| 9.556° | |
| 107.247° | |
| Physical characteristics | |
| Dimensions | 1.1 - 2.6 km |
| h | |
| 17.1 | |
5011 Ptah is a highly eccentric Mars crossing and Apollo asteroid, discovered in 1960 and named after an Egyptian god, Ptah. It passes within 30 Gm (0.2 AU) of Earth 15 times between 1900 and 2100, most recently on January 21, 2007, at 29.6 Gm. The next one will be in 2027 at 28.6 Gm
References
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