PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-08:12:50
G01     69.3           32.7                5.5 +/-    1.37       9.2 +/-    1.37  0.030 / 0.050
G07     138.0          28.5                5.4 +/-    0.66       9.7 +/-    0.66  0.040 / 0.040
G11     51.8           28.6                2.8 +/-    0.70       5.1 +/-    0.70  0.060 / 0.140
G13     272.4          37.7                6.1 +/-    1.38       9.2 +/-    1.38  0.060 / 0.090
G15     304.2          13.9                1.8 +/-    2.13       4.7 +/-    2.13  0.060 / 0.080
G17     237.1          72.8                6.3 +/-    0.94       6.6 +/-    0.94  0.070 / 0.070
G18     46.4           16.0                2.3 +/-    1.42       5.6 +/-    1.42  0.150 / 0.330
G19     224.7          39.7                7.1 +/-    1.77      10.4 +/-    1.77  0.170 / 0.410
G28     18.9           59.6                4.9 +/-    0.67       5.6 +/-    0.67  0.060 / 0.130
G30     137.1          62.5                7.7 +/-    0.75       8.6 +/-    0.75  0.090 / 0.130