PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/06-20:28:10
G10     259.7          32.8               20.1 +/-    2.41      33.3 +/-    2.41  0.140 / 0.520
G13     46.6           24.9               17.3 +/-    1.89      33.8 +/-    1.89  0.100 / 0.540
G15     68.0           53.2               17.6 +/-    0.46      21.4 +/-    0.46  0.050 / 0.050
G16     290.1          12.8               16.4 +/-    2.20      43.0 +/-    2.20  0.050 / 0.050
G18     287.2          61.9               16.8 +/-    0.68      18.7 +/-    0.68  0.140 / 0.460
G20     49.6           40.4               16.0 +/-    0.56      23.2 +/-    0.56  0.140 / 0.390
G21     352.8          68.5               17.2 +/-    1.11      18.3 +/-    1.11  0.070 / 0.100
G26     263.1          11.1               17.3 +/-    3.50      47.2 +/-    3.50  0.070 / 0.090
G27     320.6          14.7               12.9 +/-    2.62      32.4 +/-    2.62  0.110 / 0.270
G29     164.9          33.8               20.8 +/-    1.37      33.8 +/-    1.37  0.150 / 0.340