PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-13:27:50
G01     83.5           32.9                7.2 +/-    1.73      11.8 +/-    1.73  0.020 / 0.020
G07     130.3          40.5                8.6 +/-    0.47      12.4 +/-    0.47  0.020 / 0.020
G11     61.7           36.4                7.5 +/-    0.81      11.7 +/-    0.81  0.050 / 0.060
G13     287.6          37.5                8.2 +/-    1.44      12.5 +/-    1.44  0.050 / 0.050
G17     219.1          60.3               10.1 +/-    1.21      11.5 +/-    1.21  0.050 / 0.080
G18     57.7           22.1                5.9 +/-    2.89      12.3 +/-    2.89  0.050 / 0.100
G19     217.5          29.0                7.7 +/-    2.26      13.7 +/-    2.26  0.070 / 0.080
G28     359.6          61.2                6.8 +/-    0.73       7.6 +/-    0.73  0.070 / 0.080
G30     118.3          73.2                8.1 +/-    0.53       8.4 +/-    0.53  0.080 / 0.210