PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-15:28:10
G07     336.6          59.6               12.0 +/-    1.05      13.7 +/-    1.05  0.080 / 0.220
G08     106.3          50.3               13.4 +/-    0.89      16.9 +/-    0.89  0.080 / 0.190
G09     207.1          79.0               12.2 +/-    0.55      12.4 +/-    0.55  0.040 / 0.050
G11     147.6          11.4               14.3 +/-    3.55      38.7 +/-    3.55  0.040 / 0.050
G16     45.3           12.5                6.6 +/-    1.68      17.4 +/-    1.68  0.050 / 0.070
G23     153.6          45.4               14.0 +/-    0.89      18.8 +/-    0.89  0.050 / 0.080
G27     60.9           34.6                9.1 +/-    0.75      14.5 +/-    0.75  0.270 / 0.450
G28     232.8          21.5               13.0 +/-    1.07      27.5 +/-    1.07  0.160 / 0.470
G30     299.9          34.5               11.5 +/-    1.85      18.4 +/-    1.85  0.100 / 0.230