PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-01:58:00
G01     299.8          37.2               12.2 +/-    1.68      18.6 +/-    1.68  0.050 / 0.070
G10     112.9          35.6               12.2 +/-    1.60      19.1 +/-    1.60  0.060 / 0.060
G11     272.1          28.7               11.5 +/-    2.55      20.8 +/-    2.55  0.050 / 0.110
G14     14.4           62.4               10.7 +/-    1.47      11.9 +/-    1.47  0.100 / 0.070
G22     311.7          31.0               11.5 +/-    1.34      19.8 +/-    1.34  0.120 / 0.090
G25     72.2           17.6               12.9 +/-    2.87      30.2 +/-    2.87  0.060 / 0.100
G31     164.9          70.9               10.9 +/-    0.40      11.5 +/-    0.40  0.030 / 0.030
G32     40.4           50.0               12.7 +/-    1.96      16.0 +/-    1.96  0.030 / 0.020