PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-14:42:50
G01     116.8          19.6               13.6 +/-    0.71      30.1 +/-    0.71  0.040 / 0.030
G07     86.8           65.3               11.9 +/-    0.42      13.0 +/-    0.42  0.050 / 0.040
G08     44.0           29.2                9.2 +/-    0.96      16.4 +/-    0.96  0.120 / 0.220
G09     175.8          22.2               11.0 +/-    1.75      22.9 +/-    1.75  0.150 / 0.170
G11     103.0          40.9               13.7 +/-    0.70      19.6 +/-    0.70  0.050 / 0.090
G13     316.3          21.6                6.7 +/-    1.57      14.1 +/-    1.57  0.040 / 0.070
G17     202.5          26.6               10.4 +/-    1.01      19.7 +/-    1.01  0.030 / 0.040
G18     91.3           21.8               12.5 +/-    0.87      26.3 +/-    0.87  0.030 / 0.040
G28     297.5          58.3               10.2 +/-    0.92      11.8 +/-    0.92  0.030 / 0.060
G30     350.4          70.5               10.4 +/-    0.98      11.0 +/-    0.98  0.040 / 0.050