PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-02:12:40
G08     315.3          15.2                5.1 +/-    1.92      12.6 +/-    1.92  0.070 / 0.070
G10     326.4          59.3                9.4 +/-    0.59      10.7 +/-    0.59  0.050 / 0.080
G14     215.5          26.1               12.7 +/-    2.44      24.3 +/-    2.44  0.040 / 0.030
G15     46.2           13.4                5.9 +/-    1.79      15.3 +/-    1.79  0.040 / 0.030
G20     28.3           62.1               11.0 +/-    1.88      12.2 +/-    1.88  0.040 / 0.040
G21     129.3          61.8               10.8 +/-    0.56      12.1 +/-    0.56  0.040 / 0.050
G24     79.7           30.2                8.9 +/-    1.63      15.5 +/-    1.63  0.180 / 0.230
G27     281.7          37.8                9.5 +/-    1.76      14.3 +/-    1.76  0.150 / 0.380
G32     219.2          46.4               12.3 +/-    1.99      16.3 +/-    1.99  0.330 / 0.200