PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-12:27:50
G01     48.3           24.2                3.7 +/-    0.83       7.4 +/-    0.83  0.040 / 0.060
G06     176.3          28.3                6.6 +/-    1.31      11.9 +/-    1.31  0.050 / 0.070
G11     43.9           12.2                2.8 +/-    1.77       7.3 +/-    1.77  0.060 / 0.110
G13     247.8          29.2                5.1 +/-    0.75       9.2 +/-    0.75  0.060 / 0.120
G15     287.0          13.8                3.0 +/-    1.49       7.8 +/-    1.49  0.080 / 0.120
G17     332.7          77.6                6.0 +/-    0.39       6.1 +/-    0.39  0.080 / 0.130
G19     247.1          57.0                6.5 +/-    0.67       7.6 +/-    0.67  0.080 / 0.150
G28     54.8           52.5                4.7 +/-    0.41       5.8 +/-    0.41  0.090 / 0.200
G30     151.2          40.6                8.4 +/-    1.22      12.1 +/-    1.22  0.040 / 0.050