PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-20:58:10
G10     249.2          25.8               15.0 +/-    1.76      28.7 +/-    1.76  0.050 / 0.070
G13     54.9           30.6               11.8 +/-    0.96      20.4 +/-    0.96  0.060 / 0.050
G15     100.3          60.1               14.0 +/-    0.39      15.9 +/-    0.39  0.150 / 0.680
G16     296.6          15.8               11.5 +/-    3.13      28.0 +/-    3.13  0.160 / 0.570
G20     267.5          49.7               12.6 +/-    0.72      15.9 +/-    0.72  0.060 / 0.130
G21     331.7          58.9               12.2 +/-    0.67      14.0 +/-    0.67  0.070 / 0.170
G26     269.0          16.2               14.4 +/-    1.92      34.9 +/-    1.92  0.030 / 0.040
G29     164.4          52.5               14.4 +/-    1.31      17.7 +/-    1.31  0.030 / 0.040