PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-17:43:10
G10     254.1          28.7                9.2 +/-    1.74      16.5 +/-    1.74  0.060 / 0.080
G13     50.9           28.7                7.5 +/-    0.95      13.5 +/-    0.95  0.060 / 0.070
G15     77.0           55.5                9.1 +/-    0.22      10.8 +/-    0.22  0.040 / 0.050
G16     298.0          13.0                6.5 +/-    1.92      17.0 +/-    1.92  0.040 / 0.050
G18     277.2          59.5               10.8 +/-    0.94      12.3 +/-    0.94  0.110 / 0.240
G20     44.5           46.5                8.0 +/-    0.91      10.5 +/-    0.91  0.100 / 0.230
G21     345.7          65.6                7.6 +/-    0.66       8.2 +/-    0.66  0.130 / 0.310
G26     268.0          13.7                9.1 +/-    1.44      23.3 +/-    1.44  0.120 / 0.400
G29     163.1          39.5               12.6 +/-    1.35      18.5 +/-    1.35  0.090 / 0.170