PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-11:42:50
G01     41.8           17.5                3.8 +/-    0.84       9.0 +/-    0.84  0.080 / 0.080
G06     174.1          36.2               11.8 +/-    1.31      18.3 +/-    1.31  0.050 / 0.060
G13     239.0          24.7                5.2 +/-    1.70      10.2 +/-    1.70  0.040 / 0.040
G15     274.6          13.0                3.4 +/-    1.64       9.0 +/-    1.64  0.020 / 0.040
G17     346.0          74.3                7.5 +/-    0.55       7.8 +/-    0.55  0.160 / 0.410
G19     270.5          69.2                6.4 +/-    0.50       6.8 +/-    0.50  0.150 / 0.390
G24     317.6          15.4                2.3 +/-    1.47       5.8 +/-    1.47  0.070 / 0.270
G28     59.0           53.4                6.6 +/-    1.13       7.9 +/-    1.13  0.070 / 0.220
G30     154.1          32.1               10.3 +/-    0.96      17.3 +/-    0.96  0.040 / 0.050