PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-12:27:50
G01     51.3           26.3                4.6 +/-    1.14       8.6 +/-    1.14  0.090 / 0.300
G06     177.1          24.6                6.5 +/-    0.95      12.8 +/-    0.95  0.100 / 0.310
G07     145.7          13.3                6.5 +/-    1.78      16.9 +/-    1.78  0.040 / 0.060
G11     44.6           15.3                3.2 +/-    2.20       7.9 +/-    2.20  0.040 / 0.070
G13     251.6          31.3                6.3 +/-    1.70      10.8 +/-    1.70  0.080 / 0.100
G15     290.4          14.2                3.7 +/-    1.79       9.3 +/-    1.79  0.070 / 0.090
G17     313.9          79.1                5.5 +/-    0.88       5.6 +/-    0.88  0.090 / 0.190
G19     241.9          54.0                7.0 +/-    1.43       8.5 +/-    1.43  0.090 / 0.160
G28     49.2           54.0                4.3 +/-    0.60       5.2 +/-    0.60  0.070 / 0.140
G30     149.5          44.4                6.4 +/-    1.41       8.7 +/-    1.41  0.080 / 0.170