PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/06-13:27:50
G01     314.3          27.0                3.4 +/-    1.35       6.4 +/-    1.35  0.030 / 0.030
G10     95.2           45.7                5.0 +/-    1.39       6.6 +/-    1.39  0.040 / 0.020
G11     291.2          27.3                5.3 +/-    1.72       9.9 +/-    1.72  0.120 / 0.120
G14     334.4          70.6                3.3 +/-    0.55       3.5 +/-    0.55  0.090 / 0.130
G18     288.7          49.3                3.8 +/-    1.14       4.9 +/-    1.14  0.050 / 0.050
G20     114.1          21.0                4.7 +/-    0.86      10.1 +/-    0.86  0.060 / 0.040
G22     306.8          20.9                2.1 +/-    2.58       4.6 +/-    2.58  0.060 / 0.050
G25     89.5           12.7                6.4 +/-    2.15      16.9 +/-    2.15  0.040 / 0.040
G31     175.6          51.8                5.8 +/-    0.92       7.2 +/-    0.92  0.050 / 0.040
G32     18.2           62.4                4.0 +/-    0.76       4.4 +/-    0.76  0.050 / 0.040