PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-00:57:50
G02     16.7           68.0                7.7 +/-    0.45       8.3 +/-    0.45  0.030 / 0.030
G05     155.4          47.5               12.6 +/-    1.12      16.5 +/-    1.12  0.020 / 0.030
G06     46.2           28.2                6.3 +/-    1.38      11.4 +/-    1.38  0.040 / 0.050
G12     257.4          80.0               10.3 +/-    1.08      10.4 +/-    1.08  0.040 / 0.050
G19     86.1           20.6                9.6 +/-    0.76      20.7 +/-    0.76  0.110 / 0.370
G24     218.9          13.7               13.0 +/-    3.33      33.5 +/-    3.33  0.190 / 0.380
G25     313.1          39.9                8.5 +/-    1.15      12.4 +/-    1.15  0.060 / 0.090
G29     295.4          16.1                7.9 +/-    1.01      19.2 +/-    1.01  0.060 / 0.070