PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-15:27:20
G02     206.1          38.9               10.8 +/-    1.99      15.9 +/-    1.99  0.050 / 0.120
G06     142.6          75.2               11.0 +/-    0.40      11.3 +/-    0.40  0.050 / 0.130
G12     310.0          19.5                7.7 +/-    1.50      17.1 +/-    1.50  0.130 / 0.170
G17     37.9           47.9                7.6 +/-    0.49       9.9 +/-    0.49  0.110 / 0.250
G19     16.0           60.5                9.1 +/-    0.75      10.3 +/-    0.75  0.070 / 0.070
G24     291.0          40.0                8.3 +/-    0.68      12.1 +/-    0.68  0.050 / 0.080
G28     105.3          32.6                9.1 +/-    0.71      15.1 +/-    0.71  0.060 / 0.090