PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-16:42:30
G02     23.5           63.4               11.1 +/-    0.74      12.3 +/-    0.74  0.120 / 0.100
G05     157.2          51.5               14.1 +/-    0.47      17.4 +/-    0.47  0.100 / 0.080
G06     49.0           24.1               10.5 +/-    1.83      20.9 +/-    1.83  0.020 / 0.020
G12     222.6          76.6               11.6 +/-    0.41      11.8 +/-    0.41  0.030 / 0.030
G19     93.8           13.7               11.9 +/-    2.37      30.5 +/-    2.37  0.040 / 0.040
G20     197.7          17.7               14.8 +/-    1.44      34.5 +/-    1.44  0.040 / 0.040
G25     305.9          49.5               11.9 +/-    1.74      15.1 +/-    1.74  0.280 / 0.490
G29     302.9          25.2                9.7 +/-    1.92      18.8 +/-    1.92  0.200 / 0.460