PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-13:12:50
G01     58.4           29.5                6.0 +/-    1.40      10.7 +/-    1.40  0.050 / 0.050
G07     141.9          19.0                4.8 +/-    4.29      10.8 +/-    4.29  0.040 / 0.060
G11     47.9           24.2                5.9 +/-    1.79      11.7 +/-    1.79  0.140 / 0.220
G13     260.5          35.9                7.7 +/-    1.95      11.9 +/-    1.95  0.120 / 0.240
G15     293.6          16.1                5.1 +/-    1.68      12.4 +/-    1.68  0.030 / 0.030
G17     251.0          72.9                5.9 +/-    0.41       6.2 +/-    0.41  0.030 / 0.040
G18     41.2           12.0                5.8 +/-    1.91      15.4 +/-    1.91  0.280 / 0.210
G19     232.6          52.9                7.2 +/-    2.09       8.7 +/-    2.09  0.130 / 0.420
G28     25.3           59.5                5.4 +/-    0.44       6.2 +/-    0.44  0.140 / 0.140
G30     144.2          51.7                6.6 +/-    0.80       8.2 +/-    0.80  0.140 / 0.150