PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-14:27:40
G02     200.5          13.6                8.8 +/-    3.26      22.6 +/-    3.26  0.050 / 0.060
G06     171.3          48.6               10.7 +/-    0.91      13.8 +/-    0.91  0.050 / 0.060
G13     229.6          16.8                8.0 +/-    2.57      19.0 +/-    2.57  0.090 / 0.160
G17     7.5            66.8                7.8 +/-    1.06       8.4 +/-    1.06  0.090 / 0.170
G19     309.5          72.2                8.3 +/-    0.39       8.7 +/-    0.39  0.030 / 0.030
G24     313.1          25.1                6.9 +/-    0.85      13.4 +/-    0.85  0.030 / 0.030
G28     76.4           47.6                8.2 +/-    0.75      10.7 +/-    0.75  0.030 / 0.030
G30     156.4          19.2               10.7 +/-    1.16      23.9 +/-    1.16  0.040 / 0.030