PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-05:13:00
G01     106.8          25.7                5.1 +/-    0.82       9.7 +/-    0.82  0.040 / 0.060
G07     107.5          57.5                5.0 +/-    0.43       5.9 +/-    0.43  0.030 / 0.050
G08     41.9           19.8                1.1 +/-    1.22       2.5 +/-    1.22  0.030 / 0.040
G09     175.1          13.8                6.3 +/-    0.93      16.1 +/-    0.93  0.030 / 0.050
G11     89.4           42.3                4.5 +/-    0.62       6.3 +/-    0.62  0.050 / 0.090
G13     310.4          27.6                4.3 +/-    1.54       8.0 +/-    1.54  0.060 / 0.060
G17     205.8          39.2                9.5 +/-    1.58      14.0 +/-    1.58  0.080 / 0.140
G19     209.0          14.3                3.5 +/-    2.72       8.9 +/-    2.72  0.060 / 0.180
G28     320.0          61.2                4.2 +/-    0.59       4.7 +/-    0.59  0.140 / 0.270
G30     32.7           78.1                4.9 +/-    0.69       5.0 +/-    0.69  0.120 / 0.240