PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/19-06:57:50
G01     42.0           17.7                2.4 +/-    3.23       5.7 +/-    3.23  0.080 / 0.100
G06     174.5          34.7                6.2 +/-    1.23       9.9 +/-    1.23  0.060 / 0.090
G11     43.9           10.6                2.6 +/-    3.70       7.1 +/-    3.70  0.090 / 0.330
G13     239.8          25.6                6.4 +/-    1.27      12.3 +/-    1.27  0.110 / 0.320
G15     272.4          13.8                3.5 +/-    2.02       8.9 +/-    2.02  0.040 / 0.050
G17     352.6          73.9                6.0 +/-    0.62       6.2 +/-    0.62  0.030 / 0.050
G19     267.8          69.0                5.3 +/-    0.76       5.6 +/-    0.76  0.030 / 0.030
G24     317.9          14.3                1.1 +/-    1.58       2.8 +/-    1.58  0.020 / 0.030
G28     55.4           54.7                4.4 +/-    0.72       5.3 +/-    0.72  0.270 / 0.490
G30     154.5          35.4                7.4 +/-    0.82      11.7 +/-    0.82  0.090 / 0.480