PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-22:42:40
G02     249.2          77.9               12.5 +/-    0.76      12.7 +/-    0.76  0.040 / 0.070
G05     170.1          18.8               17.3 +/-    1.92      39.2 +/-    1.92  0.040 / 0.040
G06     40.4           55.2               12.1 +/-    0.61      14.4 +/-    0.61  0.090 / 0.110
G12     321.7          55.2               11.3 +/-    1.49      13.5 +/-    1.49  0.100 / 0.130
G17     71.6           23.2               11.2 +/-    1.05      22.9 +/-    1.05  0.070 / 0.220
G19     58.0           38.7               11.2 +/-    0.42      16.7 +/-    0.42  0.060 / 0.220
G24     242.5          33.5               15.2 +/-    1.04      24.8 +/-    1.04  0.090 / 0.220
G25     317.0          13.6               10.7 +/-    1.55      27.6 +/-    1.55  0.100 / 0.340