PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/16-16:42:40
G10     260.0          34.2                7.4 +/-    2.19      12.0 +/-    2.19  0.060 / 0.040
G13     45.5           23.0                7.3 +/-    2.29      14.9 +/-    2.29  0.040 / 0.050
G15     70.6           55.3                8.1 +/-    0.39       9.6 +/-    0.39  0.190 / 0.460
G16     286.3          14.0                6.4 +/-    1.79      16.4 +/-    1.79  0.240 / 0.460
G20     285.4          57.0                7.9 +/-    1.99       9.2 +/-    1.99  0.250 / 0.340
G21     353.4          68.4                7.7 +/-    0.82       8.2 +/-    0.82  0.310 / 0.370
G24     122.2          10.7                6.7 +/-   19.81      18.4 +/-   19.81  0.120 / 0.280
G26     260.2          11.1                7.3 +/-    1.99      19.8 +/-    1.99  0.150 / 0.190
G27     321.9          11.7               -1.2 +/-   27.05      -3.2 +/-   27.05  0.040 / 0.030
G29     166.3          37.9                9.1 +/-    0.90      13.8 +/-    0.90  0.040 / 0.040