PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/09-04:42:30
G07     354.1          64.3                3.8 +/-    0.41       4.2 +/-    0.41  0.040 / 0.030
G08     76.7           50.7                4.8 +/-    0.39       6.0 +/-    0.39  0.040 / 0.030
G09     177.0          58.4                6.2 +/-    0.40       7.2 +/-    0.40  0.070 / 0.130
G11     137.1          20.8                6.6 +/-    2.86      14.3 +/-    2.86  0.090 / 0.140
G23     159.2          32.6                6.6 +/-    1.06      10.9 +/-    1.06  0.050 / 0.030
G27     47.7           26.9                2.4 +/-    1.78       4.5 +/-    1.78  0.040 / 0.030
G28     245.8          36.2                6.3 +/-    1.76       9.8 +/-    1.76  0.090 / 0.090
G30     309.4          40.9                2.7 +/-    1.69       3.9 +/-    1.69  0.060 / 0.090