PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-10:12:40
G01     82.5           33.0                5.4 +/-    1.45       9.0 +/-    1.45  0.050 / 0.050
G07     131.0          39.0                8.3 +/-    0.58      12.3 +/-    0.58  0.060 / 0.070
G11     60.5           35.8                5.6 +/-    1.05       8.8 +/-    1.05  0.030 / 0.030
G13     286.4          37.8                2.4 +/-    1.00       3.6 +/-    1.00  0.030 / 0.030
G17     219.8          61.9                7.2 +/-    1.28       8.1 +/-    1.28  0.080 / 0.110
G18     56.0           21.3                5.3 +/-    3.03      11.4 +/-    3.03  0.060 / 0.090
G19     218.0          28.8                5.6 +/-    2.36      10.0 +/-    2.36  0.050 / 0.110
G28     359.5          61.3                5.3 +/-    0.76       5.9 +/-    0.76  0.070 / 0.110
G30     120.3          72.7                6.9 +/-    0.70       7.2 +/-    0.70  0.160 / 0.230