PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-04:42:40
G07     333.2          57.9                2.4 +/-    0.69       2.8 +/-    0.69  0.070 / 0.210
G08     98.8           51.3                7.4 +/-    0.53       9.2 +/-    0.53  0.060 / 0.150
G09     192.3          74.6                7.8 +/-    0.77       8.0 +/-    0.77  0.030 / 0.040
G11     145.9          12.3                7.6 +/-    4.19      20.0 +/-    4.19  0.050 / 0.050
G16     45.9           12.9                1.5 +/-    1.27       4.0 +/-    1.27  0.040 / 0.040
G23     155.6          44.0               10.0 +/-    0.48      13.7 +/-    0.48  0.040 / 0.060
G27     55.0           31.3                5.0 +/-    0.76       8.5 +/-    0.76  0.090 / 0.260
G28     237.0          29.6                4.8 +/-    1.71       8.4 +/-    1.71  0.130 / 0.260
G30     301.6          34.9                3.6 +/-    1.36       5.8 +/-    1.36  0.030 / 0.030