PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-15:12:30
G02     208.7          43.5               10.0 +/-    0.80      13.7 +/-    0.80  0.070 / 0.070
G06     109.1          78.3                9.8 +/-    0.56      10.0 +/-    0.56  0.060 / 0.060
G12     315.0          29.5                7.5 +/-    0.93      13.2 +/-    0.93  0.090 / 0.100
G17     47.8           39.2                7.7 +/-    1.21      11.3 +/-    1.21  0.080 / 0.110
G19     15.5           60.2                8.1 +/-    0.94       9.2 +/-    0.94  0.040 / 0.020
G24     281.2          42.9                8.0 +/-    0.71      11.1 +/-    0.71  0.030 / 0.020
G28     112.7          23.4                8.2 +/-    2.57      16.7 +/-    2.57  0.050 / 0.030