PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-02:58:00
G01     320.3          14.2              -19.3 +/-   18.72     -49.0 +/-   18.72  0.160 / 0.350
G08     260.1          15.4                9.5 +/-    1.97      23.4 +/-    1.97  0.170 / 0.340
G10     72.8           55.3                8.1 +/-    0.43       9.6 +/-    0.43  0.180 / 0.310
G11     306.3          21.4                7.3 +/-    1.82      15.5 +/-    1.82  0.040 / 0.020
G14     280.6          68.4                7.9 +/-    0.72       8.4 +/-    0.72  0.040 / 0.030
G18     308.3          37.1                6.4 +/-    1.67       9.8 +/-    1.67  0.260 / 0.330
G20     79.7           60.4               24.2 +/-    1.50      27.4 +/-    1.50  0.150 / 0.300
G27     227.3          11.7               10.9 +/-    1.30      29.4 +/-    1.30  0.030 / 0.050
G31     175.1          39.0                9.2 +/-    1.20      13.7 +/-    1.20  0.030 / 0.040
G32     3.1            69.5                5.9 +/-    0.21       6.3 +/-    0.21  0.080 / 0.100