PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-15:43:10
G01     83.3           32.4                8.2 +/-    1.03      13.6 +/-    1.03  0.040 / 0.060
G07     130.0          36.4                8.3 +/-    0.81      12.8 +/-    0.81  0.050 / 0.060
G11     62.4           37.8                7.7 +/-    0.97      11.6 +/-    0.97  0.050 / 0.110
G13     287.7          38.2                8.3 +/-    2.00      12.4 +/-    2.00  0.050 / 0.090
G15     311.3          12.3                7.5 +/-    2.04      19.8 +/-    2.04  0.040 / 0.070
G17     217.7          56.6               10.2 +/-    0.90      11.9 +/-    0.90  0.040 / 0.090
G18     57.6           22.1                7.6 +/-    1.77      15.9 +/-    1.77  0.070 / 0.110
G19     216.2          32.8                9.1 +/-    1.76      15.0 +/-    1.76  0.070 / 0.090
G28     346.6          61.6                7.7 +/-    0.55       8.7 +/-    0.55  0.040 / 0.050
G30     120.5          69.5                8.7 +/-    0.60       9.2 +/-    0.60  0.060 / 0.050