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