PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-10:12:50
G01     113.3          21.9                6.5 +/-    0.84      13.6 +/-    0.84  0.020 / 0.040
G07     96.1           62.3                5.2 +/-    0.72       5.8 +/-    0.72  0.020 / 0.040
G08     42.5           24.2                1.9 +/-    1.40       3.8 +/-    1.40  0.050 / 0.040
G09     173.1          15.8                6.0 +/-    0.97      14.7 +/-    0.97  0.040 / 0.040
G11     96.4           41.9                6.3 +/-    0.63       8.9 +/-    0.63  0.110 / 0.180
G13     314.0          24.6                5.0 +/-    1.14       9.9 +/-    1.14  0.100 / 0.200
G17     202.9          32.6                6.7 +/-    2.39      11.2 +/-    2.39  0.070 / 0.200
G18     86.1           22.8                3.0 +/-    1.99       6.2 +/-    1.99  0.070 / 0.210
G28     303.4          59.1                5.8 +/-    0.66       6.7 +/-    0.66  0.090 / 0.220
G30     355.6          73.0                5.0 +/-    0.83       5.2 +/-    0.83  0.080 / 0.230