PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-06:13:00
G02     25.4           62.4                2.8 +/-    0.87       3.2 +/-    0.87  0.340 / 0.480
G05     150.9          52.8                6.0 +/-    0.76       7.3 +/-    0.76  0.300 / 0.410
G06     47.9           26.1                3.0 +/-    0.83       5.6 +/-    0.83  0.090 / 0.110
G12     234.9          78.0                3.4 +/-    0.67       3.5 +/-    0.67  0.080 / 0.100
G19     91.5           16.2                4.3 +/-    1.19      10.4 +/-    1.19  0.030 / 0.070
G20     200.2          11.1                0.2 +/-   21.92       0.5 +/-   21.92  0.030 / 0.040
G24     216.0          10.3                4.8 +/-    1.54      13.4 +/-    1.54  0.030 / 0.030
G25     309.6          44.6                2.0 +/-    2.06       2.7 +/-    2.06  0.020 / 0.030
G29     300.2          21.3                2.6 +/-    2.53       5.5 +/-    2.53  0.040 / 0.050