PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-12:58:00
G01     49.4           24.9                5.1 +/-    0.82       9.9 +/-    0.82  0.050 / 0.070
G06     175.7          27.8                4.3 +/-    0.97       7.9 +/-    0.97  0.040 / 0.080
G07     146.5          11.5                4.8 +/-    1.76      13.0 +/-    1.76  0.130 / 0.260
G11     44.1           13.0                3.8 +/-    1.98       9.9 +/-    1.98  0.210 / 0.310
G13     249.1          30.0                5.6 +/-    1.69       9.9 +/-    1.69  0.060 / 0.120
G15     286.9          14.4                4.0 +/-    1.03      10.1 +/-    1.03  0.060 / 0.100
G17     330.8          78.3                4.9 +/-    0.75       5.0 +/-    0.75  0.060 / 0.130
G19     245.3          56.6                6.1 +/-    0.76       7.1 +/-    0.76  0.080 / 0.130
G28     53.2           52.7                4.5 +/-    0.41       5.5 +/-    0.41  0.070 / 0.170
G30     150.7          42.6                5.5 +/-    1.38       7.7 +/-    1.38  0.100 / 0.190