PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-17:42:30
G02     3.2            73.6               15.6 +/-    0.52      16.2 +/-    0.52  0.030 / 0.030
G05     165.6          38.6               18.8 +/-    1.21      28.0 +/-    1.21  0.040 / 0.040
G06     44.4           33.1               12.3 +/-    0.43      20.3 +/-    0.43  0.140 / 0.320
G12     284.9          78.3               13.1 +/-    0.72      13.4 +/-    0.72  0.120 / 0.250
G19     84.0           20.5               14.7 +/-    1.48      32.0 +/-    1.48  0.070 / 0.090
G24     223.5          17.3               19.1 +/-    1.27      44.8 +/-    1.27  0.070 / 0.090
G25     314.0          40.3               16.6 +/-    1.61      24.0 +/-    1.61  0.060 / 0.090
G29     293.9          16.6               15.6 +/-    2.69      37.3 +/-    2.69  0.080 / 0.100