Grid Point #: 001791 
Longitude:   -99.0627
Latitude:     18.6349
Contributing Station, distance (km).
YAIG   25.3
MRCU   33.2
UCOC   33.5
POP1   66.3
UTON   90.2
TOL2   95.3
TNAT  121.5
TNIF  301.5
LZCR  337.9
TNNP  346.0