PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/19-19:42:30
G02     28.7           58.4                7.9 +/-    0.82       9.1 +/-    0.82  0.100 / 0.190
G05     143.5          59.7               11.3 +/-    0.40      12.9 +/-    0.40  0.090 / 0.200
G06     51.9           17.6                7.1 +/-    1.83      16.7 +/-    1.83  0.040 / 0.050
G12     206.4          72.1                7.8 +/-    0.18       8.1 +/-    0.18  0.060 / 0.060
G19     97.9           9.9                 8.8 +/-    2.07      24.5 +/-    2.07  0.150 / 0.250
G25     301.4          50.8                8.3 +/-    1.83      10.3 +/-    1.83  0.180 / 0.370
G29     305.4          26.5                8.5 +/-    0.86      16.1 +/-    0.86  0.060 / 0.050