=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 23-Feb-2001
Chichijima          648/001 RLR(1993) is 8.3m below Attached BM
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 13-Mar-2014
The GPS benchmark information has been downloaded from SONEL website. GPS benchmark P213 is 13.036m above RLR.