<Tr> <Th> Periselene </Th> <Td> 26.9 kilometers (14.5 nmi) </Td> </Tr> <Tr> <Th> Aposelene </Th> <Td> 109.3 kilometers (59.0 nmi) </Td> </Tr> <Tr> <Th> Epoch </Th> <Td> December 11, 4: 04 UTC </Td> </Tr> <Tr> <Th_colspan="2"> Lunar orbiter </Th> </Tr>

When is the last time someone walked on the moon