PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-18:12:40
G05     46.9           22.6                7.3 +/-    2.23      15.1 +/-    2.23  0.070 / 0.090
G13     80.3           35.3               11.4 +/-    1.09      18.0 +/-    1.09  0.050 / 0.090
G15     130.8          49.4               11.2 +/-    0.91      14.3 +/-    0.91  0.070 / 0.130
G16     317.3          11.0                0.1 +/-   18.02       0.3 +/-   18.02  0.070 / 0.130
G20     244.8          34.7               13.0 +/-    2.39      20.7 +/-    2.39  0.040 / 0.050
G21     309.0          43.3               10.0 +/-    0.85      13.8 +/-    0.85  0.040 / 0.040
G25     202.3          15.4               12.2 +/-    1.36      30.1 +/-    1.36  0.160 / 0.500
G26     292.1          20.3                7.9 +/-    2.31      17.3 +/-    2.31  0.280 / 0.520
G29     147.0          78.4               10.0 +/-    0.39      10.2 +/-    0.39  0.060 / 0.220