PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-18:12:50
G01     66.0           32.2                9.7 +/-    1.90      16.3 +/-    1.90  0.070 / 0.220
G07     139.7          27.5               10.9 +/-    1.49      20.1 +/-    1.49  0.060 / 0.280
G11     51.2           28.1                8.7 +/-    1.71      15.8 +/-    1.71  0.080 / 0.110
G13     269.2          36.8                9.8 +/-    2.24      15.0 +/-    2.24  0.080 / 0.110
G15     299.9          15.4                8.1 +/-    2.02      20.0 +/-    2.02  0.030 / 0.040
G17     240.6          70.5               10.7 +/-    0.50      11.3 +/-    0.50  0.040 / 0.040
G18     46.0           16.2                9.1 +/-    1.42      22.1 +/-    1.42  0.050 / 0.080
G19     227.4          43.8               11.5 +/-    2.13      15.8 +/-    2.13  0.050 / 0.070
G28     26.9           58.2               10.3 +/-    1.46      11.9 +/-    1.46  0.210 / 0.320
G30     139.5          57.5               11.6 +/-    0.44      13.5 +/-    0.44  0.180 / 0.360