PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-23:27:30
G10     275.6          43.0               11.7 +/-    1.48      16.2 +/-    1.48  0.070 / 0.150
G13     38.9           12.2                8.6 +/-    2.62      22.8 +/-    2.62  0.110 / 0.150
G15     54.3           46.0                9.8 +/-    0.63      13.1 +/-    0.63  0.050 / 0.040
G20     276.2          36.5               18.1 +/-    0.82      28.0 +/-    0.82  0.050 / 0.040
G21     21.4           75.7               10.4 +/-    1.03      10.7 +/-    1.03  0.090 / 0.170
G24     112.2          18.6               12.2 +/-    0.99      27.7 +/-    0.99  0.090 / 0.230
G27     314.8          24.3               10.4 +/-    1.74      20.7 +/-    1.74  0.090 / 0.230
G29     168.9          24.5               13.1 +/-    1.71      25.8 +/-    1.71  0.520 / 0.350
G32     205.1          17.7               15.7 +/-    1.61      36.4 +/-    1.61  0.040 / 0.040