PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/28-03:43:10
G01     51.7           26.5                4.3 +/-    1.20       8.1 +/-    1.20  0.110 / 0.220
G06     180.3          20.9                6.4 +/-    1.46      13.7 +/-    1.46  0.110 / 0.210
G07     145.7          14.2                7.0 +/-    1.66      17.8 +/-    1.66  0.060 / 0.100
G11     45.7           18.2                2.8 +/-    1.69       6.3 +/-    1.69  0.080 / 0.100
G13     253.5          31.3                5.3 +/-    1.21       9.0 +/-    1.21  0.100 / 0.340
G15     284.6          16.3                4.2 +/-    1.98      10.2 +/-    1.98  0.100 / 0.310
G17     301.2          78.6                5.9 +/-    0.42       6.0 +/-    0.42  0.030 / 0.030
G19     244.6          59.2                7.6 +/-    1.19       8.7 +/-    1.19  0.040 / 0.030
G28     50.8           53.1                3.7 +/-    0.69       4.4 +/-    0.69  0.180 / 0.200
G30     147.9          39.6                8.8 +/-    0.85      13.0 +/-    0.85  0.130 / 0.300