PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/01-00:13:10
G02     351.1          77.3                8.0 +/-    0.55       8.2 +/-    0.55  0.130 / 0.220
G05     162.7          35.3               15.9 +/-    1.32      25.1 +/-    1.32  0.110 / 0.170
G06     40.8           41.6                7.6 +/-    0.60      10.8 +/-    0.60  0.070 / 0.120
G12     311.5          69.4                7.8 +/-    0.45       8.3 +/-    0.45  0.070 / 0.110
G17     86.8           10.3               10.1 +/-    1.74      28.0 +/-    1.74  0.030 / 0.030
G19     75.9           26.0               10.8 +/-    2.05      20.7 +/-    2.05  0.030 / 0.030
G24     226.5          21.6               16.0 +/-    1.14      33.8 +/-    1.14  0.030 / 0.040
G25     316.7          30.4                8.8 +/-    0.71      15.2 +/-    0.71  0.030 / 0.030
G29     288.1          12.6               11.6 +/-    1.96      30.6 +/-    1.96  0.050 / 0.080