PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/29-22:42:30
G10     251.0          26.1               20.3 +/-    2.51      38.7 +/-    2.51  0.060 / 0.280
G13     54.3           31.2               15.4 +/-    1.53      26.3 +/-    1.53  0.060 / 0.280
G15     87.3           57.8               18.7 +/-    0.88      21.7 +/-    0.88  0.090 / 0.410
G16     297.8          14.3               13.8 +/-    1.36      34.9 +/-    1.36  0.100 / 0.270
G18     269.4          55.9               17.4 +/-    2.49      20.6 +/-    2.49  0.070 / 0.130
G20     43.6           47.4               16.3 +/-    1.05      21.3 +/-    1.05  0.070 / 0.160
G21     335.0          61.1               16.0 +/-    1.04      18.0 +/-    1.04  0.080 / 0.060
G26     270.2          15.2               18.0 +/-    1.60      44.6 +/-    1.60  0.050 / 0.050
G29     163.6          46.0               20.4 +/-    0.69      27.1 +/-    0.69  0.040 / 0.050