PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-16:12:40
G05     46.4           24.8                8.0 +/-    0.81      15.7 +/-    0.81  0.050 / 0.110
G13     87.9           36.7               10.4 +/-    0.61      16.0 +/-    0.61  0.050 / 0.110
G15     133.2          46.7               12.5 +/-    1.60      16.4 +/-    1.60  0.050 / 0.090
G18     238.9          37.2               11.2 +/-    1.51      17.0 +/-    1.51  0.040 / 0.090
G20     14.0           75.8               10.2 +/-    0.46      10.5 +/-    0.46  0.090 / 0.200
G21     308.5          45.2                8.3 +/-    1.12      11.2 +/-    1.12  0.090 / 0.200
G25     202.8          16.6               12.1 +/-    1.97      29.0 +/-    1.97  0.030 / 0.040
G26     299.1          18.8                8.8 +/-    0.79      20.0 +/-    0.79  0.040 / 0.040
G29     142.8          75.1               10.4 +/-    0.64      10.7 +/-    0.64  0.040 / 0.140