PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-17:12:40
G02     54.2           37.5                7.5 +/-    0.88      11.4 +/-    0.88  0.070 / 0.080
G05     68.5           66.5                9.2 +/-    0.31       9.9 +/-    0.31  0.070 / 0.090
G12     184.6          37.8                8.7 +/-    0.41      13.2 +/-    0.41  0.160 / 0.340
G13     130.4          11.7               11.2 +/-    4.88      30.0 +/-    4.88  0.180 / 0.310
G21     267.5          13.4                7.8 +/-   12.94      20.0 +/-   12.94  0.310 / 0.570
G25     246.1          55.1                9.5 +/-    0.96      11.3 +/-    0.96  0.450 / 0.480
G29     325.2          49.5                8.3 +/-    0.70      10.5 +/-    0.70  0.060 / 0.060