PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-03:58:00
G05     48.6           16.5                2.9 +/-    0.72       7.0 +/-    0.72  0.120 / 0.470
G10     235.3          12.8                7.3 +/-    3.35      19.2 +/-    3.35  0.130 / 0.380
G13     76.3           35.6                6.9 +/-    0.53      10.9 +/-    0.53  0.110 / 0.370
G15     123.6          51.9                9.1 +/-    0.45      11.2 +/-    0.45  0.190 / 0.410
G20     247.4          36.4                8.8 +/-    1.24      13.5 +/-    1.24  0.060 / 0.090
G21     313.7          47.2                6.0 +/-    1.41       7.9 +/-    1.41  0.060 / 0.070
G25     199.4          11.8                5.6 +/-    1.78      14.9 +/-    1.78  0.050 / 0.130
G26     290.9          19.5                7.7 +/-    0.94      17.1 +/-    0.94  0.070 / 0.110
G29     149.8          69.6                8.4 +/-    0.74       8.9 +/-    0.74  0.110 / 0.210