PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-04:27:50
G01     305.9          33.9                8.2 +/-    0.99      13.3 +/-    0.99  0.050 / 0.070
G10     106.8          40.3                8.1 +/-    0.34      11.8 +/-    0.34  0.050 / 0.050
G11     278.3          29.6                9.2 +/-    1.34      16.2 +/-    1.34  0.060 / 0.150
G14     3.4            65.6                8.9 +/-    0.93       9.6 +/-    0.93  0.050 / 0.140
G18     117.6          14.7                6.7 +/-    1.78      16.9 +/-    1.78  0.060 / 0.110
G22     309.9          26.9                5.9 +/-    0.89      11.1 +/-    0.89  0.060 / 0.100
G25     76.8           16.1                7.5 +/-    1.29      18.2 +/-    1.29  0.120 / 0.290
G31     167.5          65.6               10.3 +/-    1.31      11.2 +/-    1.31  0.090 / 0.260
G32     35.4           53.0                8.2 +/-    0.40      10.0 +/-    0.40  0.030 / 0.050