PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/19-22:42:10
G02     51.9           38.8                6.8 +/-    1.22      10.1 +/-    1.22  0.060 / 0.060
G05     74.6           66.9                7.3 +/-    0.57       7.9 +/-    0.57  0.060 / 0.050
G12     187.9          44.4                9.4 +/-    0.60      12.7 +/-    0.60  0.070 / 0.090
G21     264.3          11.4                0.3 +/-   24.74       0.7 +/-   24.74  0.070 / 0.080
G25     253.3          57.0                9.0 +/-    0.74      10.6 +/-    0.74  0.220 / 0.340
G29     323.8          47.7                9.0 +/-    1.02      11.7 +/-    1.02  0.230 / 0.400