PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-13:57:50
G01     38.9           12.3                8.7 +/-    2.15      23.1 +/-    2.15  0.240 / 0.400
G02     200.0          11.5                3.6 +/-    8.15       9.8 +/-    8.15  0.190 / 0.420
G06     174.5          44.2               11.8 +/-    0.80      16.1 +/-    0.80  0.140 / 0.250
G13     235.5          18.8                8.9 +/-    3.71      20.2 +/-    3.71  0.280 / 0.110
G17     15.8           64.5                9.5 +/-    0.75      10.4 +/-    0.75  0.110 / 0.130
G19     300.5          72.0                8.7 +/-    0.69       9.1 +/-    0.69  0.130 / 0.140
G24     315.5          21.9                5.9 +/-    2.21      12.4 +/-    2.21  0.030 / 0.030
G28     78.7           43.9                9.2 +/-    1.05      12.6 +/-    1.05  0.040 / 0.030
G30     156.1          23.9                9.5 +/-    0.98      19.0 +/-    0.98  0.110 / 0.170