PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-14:42:40
G02     260.6          77.3                8.7 +/-    0.41       8.9 +/-    0.41  0.090 / 0.160
G05     171.5          20.5               10.3 +/-    1.34      22.4 +/-    1.34  0.130 / 0.140
G06     40.0           50.2                7.6 +/-    0.88       9.6 +/-    0.88  0.170 / 0.270
G12     321.1          62.5                7.7 +/-    0.72       8.6 +/-    0.72  0.230 / 0.210
G17     77.6           16.6                6.6 +/-    1.43      15.7 +/-    1.43  0.030 / 0.030
G19     61.0           37.8                7.2 +/-    1.12      10.8 +/-    1.12  0.030 / 0.030
G24     235.0          29.9                9.2 +/-    2.15      16.2 +/-    2.15  0.150 / 0.190
G25     317.5          20.9                5.1 +/-    2.27      10.9 +/-    2.27  0.130 / 0.210