PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-17:42:40
G10     246.0          21.9               22.0 +/-    2.34      46.2 +/-    2.34  0.040 / 0.040
G13     60.2           33.9               14.2 +/-    1.59      23.0 +/-    1.59  0.050 / 0.050
G15     96.2           57.2               19.5 +/-    0.73      22.7 +/-    0.73  0.050 / 0.040
G16     306.9          12.6               11.4 +/-    1.82      30.0 +/-    1.82  0.050 / 0.040
G18     262.3          53.6               17.6 +/-    2.96      21.4 +/-    2.96  0.300 / 0.370
G20     37.6           54.7               14.8 +/-    0.82      17.7 +/-    0.82  0.220 / 0.290
G21     331.5          59.0               14.9 +/-    0.58      17.0 +/-    0.58  0.070 / 0.080
G26     277.5          16.9               14.7 +/-    2.33      35.0 +/-    2.33  0.050 / 0.110
G29     159.9          49.8               21.0 +/-    0.70      26.6 +/-    0.70  0.140 / 0.340