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                6.9 +/-    0.63      10.3 +/-    0.63  0.160 / 0.570
G05     74.6           66.9                7.5 +/-    0.47       8.1 +/-    0.47  0.170 / 0.550
G12     187.9          44.4                8.6 +/-    1.49      11.6 +/-    1.49  0.050 / 0.050
G21     264.3          11.4                9.5 +/-   16.82      25.6 +/-   16.82  0.040 / 0.050
G25     253.3          57.0                9.1 +/-    0.90      10.6 +/-    0.90  0.060 / 0.090
G29     323.8          47.7                8.9 +/-    0.98      11.5 +/-    0.98  0.060 / 0.080