PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-19:43:10
G10     285.2          48.3               11.7 +/-    2.04      15.1 +/-    2.04  0.050 / 0.050
G15     48.6           36.3               10.4 +/-    0.92      16.1 +/-    0.92  0.070 / 0.040
G20     332.6          65.0               12.3 +/-    0.77      13.4 +/-    0.77  0.060 / 0.080
G21     52.7           77.2               13.0 +/-    0.96      13.3 +/-    0.96  0.090 / 0.060
G24     109.4          22.2               12.6 +/-    0.92      26.2 +/-    0.92  0.090 / 0.110
G27     310.1          29.1               11.4 +/-    0.71      20.3 +/-    0.71  0.090 / 0.110
G29     168.2          17.4               16.1 +/-    2.12      37.7 +/-    2.12  0.140 / 0.210
G32     206.6          23.1               17.5 +/-    1.15      35.8 +/-    1.15  0.110 / 0.200