PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/15-22:42:40
G01     107.5          25.4               13.1 +/-    3.13      25.3 +/-    3.13  0.080 / 0.150
G07     105.8          59.0               13.6 +/-    0.96      15.5 +/-    0.96  0.110 / 0.130
G08     42.5           23.9               10.3 +/-    1.77      20.5 +/-    1.77  0.090 / 0.090
G09     175.7          14.9               14.3 +/-    1.44      35.6 +/-    1.44  0.100 / 0.190
G11     93.3           43.5               15.0 +/-    0.85      20.7 +/-    0.85  0.140 / 0.190
G13     310.4          27.8               10.7 +/-    1.44      19.6 +/-    1.44  0.140 / 0.210
G17     206.5          34.7               15.1 +/-    0.92      24.2 +/-    0.92  0.030 / 0.040
G19     209.0          12.5               15.0 +/-    9.42      39.6 +/-    9.42  0.040 / 0.040
G28     318.2          61.1               10.3 +/-    0.83      11.6 +/-    0.83  0.040 / 0.050
G30     38.5           78.0               12.3 +/-    0.96      12.5 +/-    0.96  0.030 / 0.060