Grid Point #: 001852 
Longitude:  -102.1560
Latitude:     18.8507
Contributing Station, distance (km).
TNCN   38.3
LZCR  101.4
UCOE  117.5
TNMO  131.8
TNMR  140.1
COL2  168.3
COO4  170.1
NVDO  172.7