PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-15:27:40
G02     201.4          19.3               13.3 +/-    1.75      29.7 +/-    1.75  0.180 / 0.450
G06     167.3          56.7               13.2 +/-    0.60      15.4 +/-    0.60  0.270 / 0.350
G13     226.2          12.4               12.0 +/-    6.21      31.7 +/-    6.21  0.110 / 0.110
G17     24.5           58.2               10.2 +/-    0.97      11.8 +/-    0.97  0.080 / 0.100
G19     314.3          70.2               10.8 +/-    0.76      11.4 +/-    0.76  0.150 / 0.270
G24     308.4          31.6                9.5 +/-    1.58      16.1 +/-    1.58  0.190 / 0.330
G28     88.8           39.3               10.3 +/-    1.34      15.2 +/-    1.34  0.040 / 0.040
G30     157.8          15.0               13.2 +/-    2.59      32.7 +/-    2.59  0.040 / 0.040