PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-11:27:50
G01     112.5          21.2                4.4 +/-    1.04       9.4 +/-    1.04  0.040 / 0.070
G07     97.4           60.3                5.5 +/-    0.71       6.3 +/-    0.71  0.050 / 0.060
G08     43.9           30.2                2.8 +/-    0.43       5.0 +/-    0.43  0.070 / 0.130
G09     176.1          20.8                4.4 +/-    0.95       9.5 +/-    0.95  0.070 / 0.120
G11     99.3           42.9                4.8 +/-    0.68       6.6 +/-    0.68  0.020 / 0.040
G13     314.0          25.1                3.0 +/-    0.83       5.8 +/-    0.83  0.030 / 0.050
G17     203.7          26.4                3.3 +/-    0.55       6.2 +/-    0.55  0.110 / 0.280
G18     87.0           22.8                2.0 +/-    1.04       4.1 +/-    1.04  0.090 / 0.260
G28     293.2          55.6                3.8 +/-    0.66       4.5 +/-    0.66  0.050 / 0.100
G30     359.0          73.7                5.0 +/-    1.10       5.2 +/-    1.10  0.060 / 0.090