PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/04-15:28:10
G02     348.2          78.0               10.7 +/-    0.75      10.9 +/-    0.75  0.190 / 0.230
G05     166.9          32.8               14.1 +/-    1.04      23.4 +/-    1.04  0.140 / 0.190
G06     41.8           40.4                9.2 +/-    0.48      13.3 +/-    0.48  0.060 / 0.110
G12     308.6          72.1               10.4 +/-    0.50      10.9 +/-    0.50  0.090 / 0.110
G19     77.9           24.7               11.7 +/-    1.31      23.0 +/-    1.31  0.030 / 0.040
G24     228.6          22.1               13.4 +/-    1.87      28.1 +/-    1.87  0.030 / 0.030
G25     316.7          32.8               12.6 +/-    2.14      20.8 +/-    2.14  0.030 / 0.030
G29     289.3          13.5               12.9 +/-    2.06      33.2 +/-    2.06  0.030 / 0.040