<Tr> <Td> GCJ - 02 </Td> <Td> Chinese obfuscated datum 2002 </Td> </Tr> <Ul> <Li> International Terrestrial Reference System </Li> <Li> Spatial Reference System Identifier (SRID) </Li> <Li> Universal Transverse Mercator (UTM) </Li> </Ul> <Li> International Terrestrial Reference System </Li> <Li> Spatial Reference System Identifier (SRID) </Li>

How many degrees of longitude are there in one hemisphere