PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/24-16:27:50
G01     55.6           28.4                8.6 +/-    1.17      15.6 +/-    1.17  0.140 / 0.210
G06     179.0          17.7              -15.7 +/-   35.70     -36.6 +/-   35.70  0.110 / 0.250
G07     143.0          14.7                9.1 +/-    2.02      22.8 +/-    2.02  0.040 / 0.060
G11     46.4           20.9                8.2 +/-    1.51      17.6 +/-    1.51  0.040 / 0.070
G13     257.0          34.6               10.4 +/-    1.30      16.7 +/-    1.30  0.080 / 0.220
G15     289.8          16.4                7.3 +/-    1.81      17.5 +/-    1.81  0.080 / 0.290
G17     267.5          77.0               12.3 +/-    0.76      12.6 +/-    0.76  0.050 / 0.100
G19     236.2          55.1               11.3 +/-    0.85      13.4 +/-    0.85  0.050 / 0.090
G28     32.4           58.4               11.2 +/-    0.56      12.9 +/-    0.56  0.020 / 0.040
G30     145.6          46.1               10.5 +/-    0.92      13.9 +/-    0.92  0.030 / 0.030