PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-07:42:50
G01     86.3           32.5                4.1 +/-    1.20       6.8 +/-    1.20  0.040 / 0.040
G07     128.3          41.7                7.4 +/-    0.33      10.4 +/-    0.33  0.050 / 0.040
G11     65.2           37.6                6.0 +/-    0.75       9.0 +/-    0.75  0.030 / 0.050
G13     292.5          35.9                5.6 +/-    0.78       8.7 +/-    0.78  0.030 / 0.050
G15     313.1          11.5                2.6 +/-    2.04       7.1 +/-    2.04  0.410 / 0.260
G17     217.1          58.5                7.6 +/-    1.21       8.7 +/-    1.21  0.130 / 0.300
G19     216.1          31.5                5.2 +/-    2.29       8.8 +/-    2.29  0.030 / 0.040
G28     356.8          61.3                4.2 +/-    0.77       4.7 +/-    0.77  0.040 / 0.040
G30     113.0          73.2                6.2 +/-    0.79       6.4 +/-    0.79  0.090 / 0.090