PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-02:27:50
G08     303.3          21.7                8.8 +/-    1.34      18.6 +/-    1.34  0.070 / 0.100
G10     340.3          61.1               10.2 +/-    0.46      11.4 +/-    0.46  0.060 / 0.110
G14     221.3          37.6               16.3 +/-    1.11      24.6 +/-    1.11  0.030 / 0.030
G18     45.1           57.9               10.8 +/-    0.67      12.5 +/-    0.67  0.030 / 0.030
G21     138.5          51.7               12.9 +/-    0.72      16.0 +/-    0.72  0.060 / 0.070
G24     69.5           30.1                9.9 +/-    0.84      17.4 +/-    0.84  0.070 / 0.090
G27     266.0          36.3               13.2 +/-    1.01      20.5 +/-    1.01  0.040 / 0.060
G32     228.7          56.0               13.7 +/-    1.53      16.2 +/-    1.53  0.030 / 0.050