PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-09:12:50
G08     270.0          19.5                6.5 +/-    1.98      14.6 +/-    1.98  0.030 / 0.030
G10     57.2           58.5                0.9 +/-    0.81       1.0 +/-    0.81  0.020 / 0.040
G14     260.8          65.3                4.2 +/-    0.42       4.6 +/-    0.42  0.080 / 0.230
G18     313.3          31.2                5.4 +/-    1.57       9.3 +/-    1.57  0.080 / 0.210
G20     92.7           38.4                2.5 +/-    0.55       3.7 +/-    0.55  0.160 / 0.320
G21     154.0          16.8                2.6 +/-    1.44       6.1 +/-    1.44  0.140 / 0.340
G24     40.5           11.1                1.2 +/-    1.96       3.3 +/-    1.96  0.040 / 0.070
G27     235.4          18.5                7.2 +/-    1.46      16.4 +/-    1.46  0.050 / 0.060
G31     179.2          26.8                3.1 +/-    1.58       5.8 +/-    1.58  0.130 / 0.360
G32     307.7          74.7                4.2 +/-    0.91       4.3 +/-    0.91  0.130 / 0.280