PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-10:13:00
G01     86.8           31.5                3.5 +/-    0.99       5.9 +/-    0.99  0.040 / 0.060
G07     126.8          42.2                5.5 +/-    0.81       7.7 +/-    0.81  0.050 / 0.060
G11     67.5           40.8                4.3 +/-    1.87       6.2 +/-    1.87  0.060 / 0.050
G13     291.9          37.7                4.4 +/-    4.29       6.6 +/-    4.29  0.050 / 0.050
G17     214.7          52.3                5.7 +/-    0.96       7.0 +/-    0.96  0.120 / 0.140
G18     61.5           23.4                3.0 +/-    0.92       6.1 +/-    0.92  0.110 / 0.170
G19     214.2          30.3                4.9 +/-    2.78       8.5 +/-    2.78  0.080 / 0.130
G28     336.4          61.3                4.5 +/-    0.62       5.0 +/-    0.62  0.080 / 0.130
G30     107.3          76.5                5.0 +/-    0.57       5.1 +/-    0.57  0.050 / 0.060