PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/05-12:57:50
G01     107.5          25.3                6.4 +/-    0.96      12.5 +/-    0.96  0.030 / 0.070
G07     106.2          58.5                7.7 +/-    0.86       8.8 +/-    0.86  0.030 / 0.030
G08     41.7           19.4                5.6 +/-    0.90      12.6 +/-    0.90  0.090 / 0.140
G09     173.6          12.3                5.5 +/-    2.99      14.6 +/-    2.99  0.070 / 0.100
G11     88.3           42.5                7.6 +/-    0.67      10.6 +/-    0.67  0.050 / 0.060
G13     309.8          28.6                3.6 +/-    1.57       6.5 +/-    1.57  0.050 / 0.060
G17     205.3          38.2                6.6 +/-    2.89       9.8 +/-    2.89  0.150 / 0.290
G18     80.3           24.1                6.1 +/-    0.72      12.3 +/-    0.72  0.140 / 0.280
G28     316.5          60.8                5.4 +/-    1.13       6.1 +/-    1.13  0.030 / 0.040
G30     14.9           77.4                6.4 +/-    0.58       6.6 +/-    0.58  0.030 / 0.040