PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-00:42:30
G10     244.3          21.2               13.3 +/-    1.88      28.4 +/-    1.88  0.040 / 0.050
G13     61.3           33.6                9.7 +/-    1.12      15.8 +/-    1.12  0.040 / 0.050
G15     106.5          57.9               12.0 +/-    0.24      13.8 +/-    0.24  0.060 / 0.110
G16     302.0          15.7                7.0 +/-    1.86      17.1 +/-    1.86  0.070 / 0.100
G20     254.6          33.8               14.0 +/-    2.70      22.7 +/-    2.70  0.110 / 0.340
G21     323.9          54.2               10.2 +/-    0.51      12.3 +/-    0.51  0.170 / 0.380
G26     273.8          18.5               10.2 +/-    2.93      23.2 +/-    2.93  0.020 / 0.030
G29     162.8          59.9               12.4 +/-    0.65      14.1 +/-    0.65  0.020 / 0.030