PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/07-04:42:40
G01     125.5          11.0               -1.1 +/-   29.66      -3.0 +/-   29.66  0.040 / 0.040
G07     51.9           69.5                5.8 +/-    0.53       6.1 +/-    0.53  0.040 / 0.030
G08     51.2           40.2                3.7 +/-    1.43       5.4 +/-    1.43  0.070 / 0.070
G09     175.6          34.5                7.0 +/-    1.16      11.2 +/-    1.16  0.060 / 0.070
G11     122.6          35.8                5.8 +/-    1.21       9.1 +/-    1.21  0.090 / 0.100
G13     320.8          12.4               -3.5 +/-   12.75      -9.3 +/-   12.75  0.100 / 0.110
G17     199.2          13.8                4.0 +/-    2.86      10.1 +/-    2.86  0.280 / 0.310
G28     266.9          45.8                6.6 +/-    2.76       8.8 +/-    2.76  0.230 / 0.410
G30     327.6          57.4                5.8 +/-    0.91       6.7 +/-    0.91  0.030 / 0.040