PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-23:27:40
G10     257.9          32.4               12.6 +/-    1.01      20.9 +/-    1.01  0.140 / 0.360
G13     47.0           24.7                9.3 +/-    1.06      18.3 +/-    1.06  0.150 / 0.350
G15     75.3           56.9               10.2 +/-    0.59      11.9 +/-    0.59  0.120 / 0.330
G16     286.0          14.9                8.8 +/-    1.76      22.0 +/-    1.76  0.150 / 0.370
G20     263.0          30.4                8.6 +/-    0.85      14.9 +/-    0.85  0.110 / 0.100
G21     343.2          65.2                6.8 +/-    0.99       7.4 +/-    0.99  0.110 / 0.120
G26     258.8          12.1               12.1 +/-   17.59      32.2 +/-   17.59  0.050 / 0.070
G27     321.8          11.4               -3.5 +/-   34.86      -9.6 +/-   34.86  0.050 / 0.060
G29     167.1          42.0               13.2 +/-    0.86      18.6 +/-    0.86  0.040 / 0.050