PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-08:43:00
G01     93.8           30.9                5.9 +/-    0.75      10.1 +/-    0.75  0.030 / 0.030
G07     122.8          47.1                6.7 +/-    0.95       8.7 +/-    0.95  0.030 / 0.030
G11     70.6           40.2                5.0 +/-    0.58       7.2 +/-    0.58  0.050 / 0.050
G13     297.7          35.3                6.3 +/-    1.81       9.9 +/-    1.81  0.050 / 0.050
G17     211.6          52.7                9.2 +/-    1.82      11.3 +/-    1.82  0.100 / 0.120
G18     65.1           23.5                3.7 +/-    0.53       7.5 +/-    0.53  0.110 / 0.120
G19     213.5          20.7                4.6 +/-    2.31       9.9 +/-    2.31  0.070 / 0.120
G28     340.2          61.8                4.2 +/-    0.76       4.7 +/-    0.76  0.070 / 0.130
G30     85.8           79.5                5.4 +/-    0.60       5.5 +/-    0.60  0.070 / 0.170