PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-01:58:10
G02     58.2           33.2                7.8 +/-    2.54      12.8 +/-    2.54  0.090 / 0.080
G05     59.9           61.6                9.8 +/-    0.57      11.0 +/-    0.57  0.070 / 0.060
G12     186.7          37.1               11.2 +/-    0.83      17.1 +/-    0.83  0.070 / 0.070
G13     128.7          13.6               12.2 +/-    1.93      31.4 +/-    1.93  0.060 / 0.070
G15     163.9          11.4                4.3 +/-   22.84      11.7 +/-   22.84  0.140 / 0.340
G25     239.0          53.4               10.4 +/-    4.90      12.6 +/-    4.90  0.190 / 0.390
G29     330.5          55.9               10.3 +/-    0.56      12.1 +/-    0.56  0.030 / 0.030