PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-02:43:00
G01     51.5           26.4                4.3 +/-    1.51       8.2 +/-    1.51  0.030 / 0.030
G06     179.8          21.7                5.9 +/-    1.47      12.5 +/-    1.47  0.030 / 0.030
G07     145.8          14.2                7.0 +/-    2.98      17.6 +/-    2.98  0.030 / 0.050
G11     45.9           18.6                2.7 +/-    1.57       6.3 +/-    1.57  0.040 / 0.060
G13     253.2          31.2                6.1 +/-    1.54      10.3 +/-    1.54  0.070 / 0.120
G15     284.5          16.3                4.3 +/-    2.07      10.4 +/-    2.07  0.080 / 0.110
G17     298.8          78.3                5.7 +/-    1.30       5.8 +/-    1.30  0.120 / 0.300
G19     244.7          59.1                6.9 +/-    1.04       7.9 +/-    1.04  0.170 / 0.230
G28     51.0           53.1                4.1 +/-    0.51       5.0 +/-    0.51  0.110 / 0.210
G30     147.8          38.7                7.0 +/-    1.02      10.4 +/-    1.02  0.110 / 0.220