PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-21:27:50
G08     318.7          13.2                7.3 +/-    2.31      18.9 +/-    2.31  0.030 / 0.040
G10     308.5          55.2                7.7 +/-    1.33       9.1 +/-    1.33  0.030 / 0.040
G14     212.3          17.7               11.0 +/-    2.95      25.6 +/-    2.95  0.060 / 0.090
G15     45.9           26.4                6.9 +/-    3.45      13.1 +/-    3.45  0.070 / 0.080
G20     9.1            64.5                8.7 +/-    0.80       9.5 +/-    0.80  0.090 / 0.400
G21     114.9          68.9                9.8 +/-    0.68      10.4 +/-    0.68  0.160 / 0.430
G24     86.7           28.1                7.5 +/-    1.29      13.8 +/-    1.29  0.080 / 0.130
G27     293.6          36.0               10.0 +/-    1.52      15.5 +/-    1.52  0.070 / 0.110
G32     213.7          39.9               10.7 +/-    2.25      15.6 +/-    2.25  0.120 / 0.320