PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/04-18:12:40
G10     252.6          27.6               14.6 +/-    1.60      26.9 +/-    1.60  0.040 / 0.060
G13     52.4           29.8               12.3 +/-    0.98      21.7 +/-    0.98  0.040 / 0.060
G15     80.3           56.2               12.2 +/-    0.47      14.3 +/-    0.47  0.060 / 0.070
G16     299.1          13.2                9.9 +/-    1.76      25.8 +/-    1.76  0.060 / 0.080
G18     274.2          58.4               13.2 +/-    0.83      15.2 +/-    0.83  0.090 / 0.280
G20     43.5           47.7               11.7 +/-    0.91      15.2 +/-    0.91  0.090 / 0.260
G21     342.2          64.2               11.5 +/-    1.10      12.6 +/-    1.10  0.100 / 0.390
G26     270.0          14.3               13.2 +/-    1.87      33.3 +/-    1.87  0.130 / 0.340
G29     162.5          40.9               15.9 +/-    0.76      22.7 +/-    0.76  0.050 / 0.070