PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/23-13:43:00
G01     48.0           23.8                4.3 +/-    0.72       8.7 +/-    0.72  0.190 / 0.360
G06     175.4          29.6                8.5 +/-    1.95      14.9 +/-    1.95  0.210 / 0.440
G11     43.8           11.6                4.7 +/-    1.47      12.8 +/-    1.47  0.180 / 0.000
G13     247.3          28.9                5.0 +/-    0.97       8.9 +/-    0.97  0.180 / 0.250
G15     284.8          14.2                5.1 +/-    1.94      12.9 +/-    1.94  0.040 / 0.060
G17     336.3          77.3                6.4 +/-    0.98       6.6 +/-    0.98  0.040 / 0.070
G19     248.4          58.3                7.0 +/-    1.20       8.1 +/-    1.20  0.040 / 0.070
G24     318.5          11.9              -17.3 +/-   21.60     -46.2 +/-   21.60  0.060 / 0.060
G28     56.1           51.9                5.5 +/-    0.57       6.7 +/-    0.57  0.050 / 0.070
G30     151.5          40.4                8.0 +/-    0.61      11.5 +/-    0.61  0.060 / 0.080