PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-16:43:10
G01     112.5          22.5               12.6 +/-    1.28      26.1 +/-    1.28  0.040 / 0.030
G07     96.8           62.5               10.8 +/-    0.42      12.1 +/-    0.42  0.040 / 0.040
G08     43.0           26.3               10.1 +/-    0.97      19.1 +/-    0.97  0.040 / 0.040
G09     175.6          18.4               10.3 +/-    0.92      23.6 +/-    0.92  0.030 / 0.040
G11     97.3           42.2               11.1 +/-    0.45      15.6 +/-    0.45  0.070 / 0.130
G13     313.6          24.9               10.2 +/-    2.88      20.0 +/-    2.88  0.070 / 0.120
G17     204.4          30.3               11.9 +/-    1.43      20.8 +/-    1.43  0.070 / 0.110
G18     86.6           23.2                8.5 +/-    0.68      17.3 +/-    0.68  0.050 / 0.140
G28     306.9          59.8                9.3 +/-    0.92      10.6 +/-    0.92  0.070 / 0.070
G30     3.9            74.6               11.3 +/-    0.99      11.7 +/-    0.99  0.050 / 0.060