PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-02:42:40
G10     266.6          37.9                9.8 +/-    1.22      14.7 +/-    1.22  0.170 / 0.350
G13     42.1           18.6                8.3 +/-    3.51      18.8 +/-    3.51  0.260 / 0.410
G15     60.7           50.4               10.2 +/-    0.79      12.8 +/-    0.79  0.110 / 0.150
G16     278.2          12.3                7.9 +/-    2.25      20.9 +/-    2.25  0.130 / 0.170
G20     292.0          57.7               10.7 +/-    0.88      12.4 +/-    0.88  0.040 / 0.030
G21     359.5          71.2               10.5 +/-    0.42      11.0 +/-    0.42  0.060 / 0.030
G24     119.9          14.1               11.8 +/-    2.04      29.9 +/-    2.04  0.250 / 0.270
G27     318.8          18.6                7.3 +/-    1.49      16.5 +/-    1.49  0.120 / 0.230
G29     168.3          32.5               11.4 +/-    0.72      19.1 +/-    0.72  0.020 / 0.040