PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/27-20:27:50
G02     357.5          74.4                8.7 +/-    0.41       9.0 +/-    0.41  0.120 / 0.350
G05     163.3          40.5               12.1 +/-    1.22      17.4 +/-    1.22  0.130 / 0.240
G06     44.9           31.6                8.2 +/-    0.53      13.9 +/-    0.53  0.030 / 0.030
G12     275.9          79.7                7.8 +/-    0.84       7.9 +/-    0.84  0.030 / 0.030
G19     84.7           20.0                9.4 +/-    0.83      20.6 +/-    0.83  0.060 / 0.090
G24     223.0          16.9               11.9 +/-    1.96      28.4 +/-    1.96  0.070 / 0.080
G25     313.3          42.1                9.3 +/-    1.73      13.1 +/-    1.73  0.040 / 0.060
G29     293.7          15.6                9.1 +/-    1.88      22.3 +/-    1.88  0.040 / 0.060