PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-21:27:40
G02     78.0           19.2               10.2 +/-    1.98      22.8 +/-    1.98  0.030 / 0.080
G05     44.6           38.6                8.5 +/-    0.40      12.7 +/-    0.40  0.040 / 0.070
G13     105.6          30.3               11.9 +/-    0.77      20.7 +/-    0.77  0.090 / 0.160
G15     152.7          31.2               13.4 +/-    1.45      22.9 +/-    1.45  0.070 / 0.130
G20     229.3          -7.1               11.3 +/-    1.64      33.4 +/-    1.64  0.090 / 0.190
G21     291.0          31.0               12.7 +/-    1.80      21.8 +/-    1.80  0.100 / 0.160
G25     212.1          31.1               12.3 +/-    1.71      21.1 +/-    1.71  0.030 / 0.030
G26     309.6          17.2               10.2 +/-    1.54      24.1 +/-    1.54  0.020 / 0.030
G29     346.0          78.1               10.6 +/-    0.84      10.8 +/-    0.84  0.070 / 0.140