PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-08:43:10
G01     126.9          11.7               -7.7 +/-   32.41     -20.7 +/-   32.41  0.040 / 0.040
G07     55.7           69.2                5.0 +/-    0.56       5.3 +/-    0.56  0.040 / 0.040
G08     49.2           37.5                2.1 +/-    0.75       3.2 +/-    0.75  0.100 / 0.380
G09     174.2          31.0                6.8 +/-    1.07      11.6 +/-    1.07  0.090 / 0.430
G11     116.5          35.7                7.2 +/-    0.55      11.2 +/-    0.55  0.110 / 0.370
G13     320.9          12.1                1.9 +/-    6.60       4.9 +/-    6.60  0.110 / 0.360
G17     199.3          16.6                5.0 +/-    1.62      12.0 +/-    1.62  0.100 / 0.290
G18     102.1          16.7                5.7 +/-    1.26      13.7 +/-    1.26  0.100 / 0.310
G28     275.4          52.3                6.8 +/-    1.03       8.3 +/-    1.03  0.060 / 0.110
G30     331.0          59.4                3.3 +/-    1.05       3.7 +/-    1.05  0.060 / 0.110