Grid Point #: 001397 
Longitude:  -100.4783
Latitude:     17.5557
Contributing Station, distance (km).
TNIF  169.8
LZCR  185.0
MRCU  201.9
YAIG  208.2
TOL2  212.3
TNMO  245.8
TNAT  265.8
TNNP  389.3
OXUM  473.4