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                4.5 +/-    0.88       7.8 +/-    0.88  0.080 / 0.140
G07     140.9          22.1                5.3 +/-    1.78      11.0 +/-    1.78  0.050 / 0.140
G11     49.3           26.7                2.0 +/-    2.03       3.7 +/-    2.03  0.100 / 0.120
G13     263.4          36.8                4.8 +/-    2.33       7.3 +/-    2.33  0.090 / 0.110
G15     296.7          15.7                1.2 +/-    1.08       3.0 +/-    1.08  0.090 / 0.130
G17     246.2          72.7                4.9 +/-    0.48       5.1 +/-    0.48  0.090 / 0.120
G18     42.8           13.7                1.3 +/-    3.60       3.4 +/-    3.60  0.040 / 0.040
G19     229.9          51.0                5.3 +/-    2.79       6.6 +/-    2.79  0.040 / 0.050
G28     19.7           60.1                5.0 +/-    1.23       5.6 +/-    1.23  0.040 / 0.030
G30     142.8          55.5                5.2 +/-    0.58       6.2 +/-    0.58  0.030 / 0.030