PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-20:43:10
G02     76.8           20.4                8.0 +/-    1.66      17.5 +/-    1.66  0.050 / 0.050
G05     44.7           40.2                8.6 +/-    0.79      12.5 +/-    0.79  0.030 / 0.070
G13     107.1          29.6               10.1 +/-    1.59      17.8 +/-    1.59  0.070 / 0.180
G15     154.0          29.8               13.9 +/-    0.81      24.5 +/-    0.81  0.080 / 0.140
G20     228.5          -12.7              13.4 +/-    5.11      35.3 +/-    5.11  0.080 / 0.180
G21     289.8          30.1               10.8 +/-    0.81      18.8 +/-    0.81  0.080 / 0.120
G25     212.8          32.3               13.7 +/-    1.20      23.0 +/-    1.20  0.090 / 0.150
G26     310.7          16.7                9.2 +/-    1.51      22.0 +/-    1.51  0.080 / 0.170
G29     344.2          76.6               10.1 +/-    0.58      10.3 +/-    0.58  0.050 / 0.130