PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/04-15:27:40
G02     57.8           33.9                7.9 +/-    0.76      12.9 +/-    0.76  0.040 / 0.040
G05     65.7           65.6                9.4 +/-    0.55      10.2 +/-    0.55  0.030 / 0.040
G12     186.8          36.8               10.6 +/-    1.40      16.2 +/-    1.40  0.110 / 0.280
G13     132.0          13.0               11.4 +/-    3.10      29.7 +/-    3.10  0.130 / 0.240
G15     164.7          10.0               -9.4 +/-   18.05     -26.1 +/-   18.05  0.060 / 0.050
G20     206.7          55.5               11.2 +/-    1.05      13.3 +/-    1.05  0.040 / 0.060
G21     269.8          18.2                8.0 +/-    2.88      18.4 +/-    2.88  0.060 / 0.100
G25     239.3          53.7               10.7 +/-    1.05      12.9 +/-    1.05  0.070 / 0.090
G29     331.7          57.5                8.2 +/-    1.17       9.5 +/-    1.17  0.040 / 0.050