PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-21:28:10
G02     221.5          65.5               11.2 +/-    1.10      12.2 +/-    1.10  0.030 / 0.050
G06     47.5           68.2               10.1 +/-    0.47      10.8 +/-    0.47  0.040 / 0.070
G12     320.5          42.6                8.9 +/-    1.11      12.4 +/-    1.11  0.060 / 0.090
G17     60.8           30.7               10.3 +/-    0.81      17.8 +/-    0.81  0.080 / 0.110
G19     43.5           47.2                9.9 +/-    0.67      12.9 +/-    0.67  0.030 / 0.030
G24     257.4          40.0               12.3 +/-    4.13      17.9 +/-    4.13  0.040 / 0.030
G28     126.2          9.4                13.0 +/-    2.06      36.7 +/-    2.06  0.050 / 0.050