PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-08:28:10
G01     69.5           32.8                3.2 +/-    0.77       5.4 +/-    0.77  0.050 / 0.030
G07     137.9          28.8                4.4 +/-    1.29       7.9 +/-    1.29  0.040 / 0.040
G11     51.9           28.8                2.0 +/-    0.47       3.6 +/-    0.47  0.050 / 0.100
G13     272.6          37.7                5.0 +/-    1.23       7.5 +/-    1.23  0.070 / 0.140
G15     304.5          13.7                1.8 +/-    2.04       4.6 +/-    2.04  0.070 / 0.070
G17     236.7          72.6                5.7 +/-    0.58       5.9 +/-    0.58  0.060 / 0.080
G18     46.6           16.2                1.5 +/-    0.98       3.7 +/-    0.98  0.110 / 0.320
G19     224.6          39.5                5.3 +/-    1.36       7.7 +/-    1.36  0.140 / 0.340
G28     18.7           59.6                3.5 +/-    1.02       4.0 +/-    1.02  0.080 / 0.110
G30     136.9          62.7                5.7 +/-    1.19       6.3 +/-    1.19  0.060 / 0.110