PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-11:12:50
G01     60.8           30.2                3.2 +/-    0.78       5.6 +/-    0.78  0.080 / 0.180
G07     140.9          22.1                5.0 +/-    1.27      10.4 +/-    1.27  0.060 / 0.140
G11     49.3           26.7                2.3 +/-    1.21       4.3 +/-    1.21  0.040 / 0.050
G13     263.4          36.8                5.1 +/-    1.31       7.8 +/-    1.31  0.040 / 0.060
G15     296.7          15.7                2.1 +/-    2.17       5.1 +/-    2.17  0.030 / 0.040
G17     246.2          72.7                6.8 +/-    0.68       7.1 +/-    0.68  0.020 / 0.030
G18     42.8           13.7                0.8 +/-    0.79       2.0 +/-    0.79  0.040 / 0.060
G19     229.9          51.0                6.7 +/-    0.89       8.3 +/-    0.89  0.040 / 0.050
G28     19.7           60.1                4.2 +/-    0.70       4.7 +/-    0.70  0.060 / 0.110
G30     142.8          55.5                5.3 +/-    0.96       6.3 +/-    0.96  0.070 / 0.110