PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/29-21:12:50
G02     81.5           16.0               14.5 +/-    1.14      35.2 +/-    1.14  0.170 / 0.340
G05     44.4           39.9               14.7 +/-    0.41      21.4 +/-    0.41  0.110 / 0.370
G13     103.6          32.7               18.4 +/-    0.99      30.5 +/-    0.99  0.090 / 0.180
G15     147.5          35.5               20.6 +/-    2.02      32.4 +/-    2.02  0.110 / 0.250
G18     229.9          25.0               19.9 +/-    3.36      38.8 +/-    3.36  0.040 / 0.120
G20     337.2          85.1               16.0 +/-    0.56      16.1 +/-    0.56  0.050 / 0.140
G21     294.9          35.0               17.4 +/-    1.66      27.6 +/-    1.66  0.020 / 0.030
G25     206.7          25.6               19.1 +/-    1.07      36.8 +/-    1.07  0.020 / 0.030
G26     309.8          16.1               15.5 +/-    2.60      37.5 +/-    2.60  0.040 / 0.060
G29     34.2           85.6               16.8 +/-    0.41      16.8 +/-    0.41  0.030 / 0.070