PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/12-00:27:40
G08     298.6          22.8               10.6 +/-    0.85      21.9 +/-    0.85  0.030 / 0.030
G10     350.7          62.2                9.8 +/-    0.47      10.9 +/-    0.47  0.030 / 0.030
G14     224.8          42.0               12.7 +/-    2.20      17.9 +/-    2.20  0.060 / 0.050
G18     53.8           54.9               11.6 +/-    0.89      13.8 +/-    0.89  0.040 / 0.050
G21     142.0          45.8               13.2 +/-    0.77      17.6 +/-    0.77  0.060 / 0.080
G24     64.0           29.0               11.7 +/-    0.92      21.0 +/-    0.92  0.070 / 0.090
G27     260.0          34.5               14.2 +/-    1.85      22.8 +/-    1.85  0.080 / 0.090
G32     234.2          59.3               11.8 +/-    1.58      13.4 +/-    1.58  0.090 / 0.090