PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-22:27:50
G10     256.4          30.4               23.1 +/-    1.38      40.1 +/-    1.38  0.090 / 0.130
G13     49.2           27.5               15.9 +/-    1.51      29.4 +/-    1.51  0.070 / 0.090
G15     75.0           55.8               19.0 +/-    0.65      22.4 +/-    0.65  0.160 / 0.240
G16     292.1          13.7               18.0 +/-    2.62      46.3 +/-    2.62  0.140 / 0.290
G18     279.5          59.6               19.2 +/-    1.69      21.9 +/-    1.69  0.060 / 0.030
G20     47.7           42.4               16.5 +/-    1.24      23.1 +/-    1.24  0.040 / 0.030
G21     344.1          65.5               18.5 +/-    0.75      20.1 +/-    0.75  0.440 / 0.360
G26     264.8          12.7               21.4 +/-    1.19      56.2 +/-    1.19  0.210 / 0.210
G27     321.5          11.9                7.5 +/-   28.01      20.0 +/-   28.01  0.040 / 0.070
G29     164.9          39.0               20.3 +/-    0.85      30.0 +/-    0.85  0.050 / 0.060