PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-22:42:40
G10     275.6          43.0               10.4 +/-    1.30      14.5 +/-    1.30  0.070 / 0.160
G13     38.9           12.1                8.7 +/-    3.71      23.0 +/-    3.71  0.090 / 0.120
G15     54.5           46.4                8.7 +/-    0.92      11.5 +/-    0.92  0.060 / 0.030
G20     272.9          30.8                5.8 +/-    0.85      10.0 +/-    0.85  0.070 / 0.030
G21     21.2           75.7               10.6 +/-    0.73      10.9 +/-    0.73  0.090 / 0.170
G24     112.0          18.6               12.6 +/-    1.81      28.8 +/-    1.81  0.090 / 0.160
G27     314.8          24.2                9.4 +/-    1.23      18.8 +/-    1.23  0.230 / 0.340
G29     168.9          24.6               14.1 +/-    1.81      27.9 +/-    1.81  0.340 / 0.460
G32     205.1          17.7               14.7 +/-    2.10      34.3 +/-    2.10  0.030 / 0.040