PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-19:12:20
G02     24.3           62.0                9.3 +/-    0.43      10.4 +/-    0.43  0.030 / 0.050
G05     148.4          56.7               12.0 +/-    0.53      14.0 +/-    0.53  0.030 / 0.050
G06     51.3           18.4                7.8 +/-    0.91      17.8 +/-    0.91  0.040 / 0.050
G12     196.4          71.5               10.3 +/-    0.61      10.8 +/-    0.61  0.020 / 0.050
G19     94.0           16.1                9.5 +/-    1.32      23.1 +/-    1.32  0.040 / 0.060
G25     304.0          50.0                9.5 +/-    1.49      12.0 +/-    1.49  0.040 / 0.060
G29     302.5          22.5                8.8 +/-    1.82      18.1 +/-    1.82  0.040 / 0.070