PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/23-08:57:30
G01     316.5          23.2                3.4 +/-    3.58       6.9 +/-    3.58  0.050 / 0.060
G10     89.4           49.4                6.1 +/-    0.38       7.7 +/-    0.38  0.040 / 0.060
G11     297.7          25.1                6.5 +/-    1.60      12.6 +/-    1.60  0.100 / 0.130
G14     304.6          69.4                5.0 +/-    0.41       5.4 +/-    0.41  0.120 / 0.160
G18     298.3          44.0                6.6 +/-    1.16       9.1 +/-    1.16  0.130 / 0.150
G22     304.9          18.7                3.2 +/-    1.25       7.4 +/-    1.25  0.120 / 0.180
G25     96.0           11.4              -12.8 +/-   29.20     -34.5 +/-   29.20  0.030 / 0.040
G31     171.7          51.4                6.5 +/-    0.67       8.0 +/-    0.67  0.040 / 0.040
G32     21.9           61.3                4.8 +/-    0.45       5.4 +/-    0.45  0.100 / 0.190