PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-13:42:50
G01     49.3           24.6               10.5 +/-    0.43      20.6 +/-    0.43  0.040 / 0.070
G06     178.1          25.6               10.5 +/-    1.27      20.2 +/-    1.27  0.040 / 0.070
G11     43.9           12.2                9.4 +/-    2.37      25.0 +/-    2.37  0.170 / 0.360
G13     252.0          29.8               11.5 +/-    1.69      20.2 +/-    1.69  0.100 / 0.300
G15     284.6          15.4                7.7 +/-    2.62      19.1 +/-    2.62  0.120 / 0.160
G17     333.0          78.0               11.7 +/-    0.96      11.9 +/-    0.96  0.100 / 0.140
G19     250.2          62.8               11.3 +/-    0.86      12.5 +/-    0.86  0.030 / 0.030
G28     54.4           52.2               10.6 +/-    0.51      13.0 +/-    0.51  0.020 / 0.030
G30     150.2          42.1               12.1 +/-    0.63      17.0 +/-    0.63  0.060 / 0.120