PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/15-19:12:50
G01     310.3          31.1                8.4 +/-    1.77      14.3 +/-    1.77  0.080 / 0.110
G10     102.2          41.9                8.3 +/-    0.42      11.7 +/-    0.42  0.090 / 0.140
G11     284.3          28.3                6.7 +/-    0.64      12.2 +/-    0.64  0.070 / 0.050
G14     350.0          68.5                6.6 +/-    1.02       7.0 +/-    1.02  0.060 / 0.050
G18     278.8          51.0               13.0 +/-    1.26      16.1 +/-    1.26  0.080 / 0.140
G20     118.2          16.7                8.8 +/-    0.99      21.0 +/-    0.99  0.060 / 0.150
G22     308.5          22.6                7.2 +/-    1.03      14.9 +/-    1.03  0.030 / 0.050
G25     79.7           14.3                5.6 +/-    1.94      14.2 +/-    1.94  0.030 / 0.040
G31     174.8          57.8                8.8 +/-    0.57      10.2 +/-    0.57  0.120 / 0.140
G32     30.9           55.9                7.3 +/-    0.92       8.6 +/-    0.92  0.080 / 0.130