PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-08:28:10
G01     59.3           30.1                4.2 +/-    0.65       7.2 +/-    0.65  0.030 / 0.060
G06     182.2          13.2                5.6 +/-    2.27      14.6 +/-    2.27  0.030 / 0.060
G07     142.5          20.6                7.9 +/-    1.99      17.1 +/-    1.99  0.020 / 0.030
G11     47.9           22.5                2.7 +/-    0.78       5.7 +/-    0.78  0.020 / 0.030
G13     263.5          34.7                6.1 +/-    1.20       9.7 +/-    1.20  0.040 / 0.110
G15     293.1          16.7                2.6 +/-    1.73       6.3 +/-    1.73  0.050 / 0.120
G17     268.2          78.3                6.8 +/-    0.44       6.9 +/-    0.44  0.090 / 0.260
G19     234.1          53.1                7.4 +/-    1.08       9.0 +/-    1.08  0.090 / 0.240
G28     38.1           56.0                4.1 +/-    0.55       4.8 +/-    0.55  0.120 / 0.360
G30     143.7          51.1                8.5 +/-    1.70      10.6 +/-    1.70  0.090 / 0.370