PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-02:27:50
G01     120.5          16.5                8.5 +/-    1.27      20.3 +/-    1.27  0.030 / 0.050
G07     80.8           65.3                5.6 +/-    0.72       6.1 +/-    0.72  0.030 / 0.040
G08     44.8           30.6                1.7 +/-    0.72       3.0 +/-    0.72  0.100 / 0.190
G09     176.0          26.6                7.1 +/-    2.50      13.4 +/-    2.50  0.100 / 0.190
G11     106.7          39.5                5.7 +/-    1.20       8.3 +/-    1.20  0.100 / 0.240
G13     318.3          18.5                4.0 +/-    1.82       9.0 +/-    1.82  0.130 / 0.240
G17     200.0          25.2                6.0 +/-    1.19      11.6 +/-    1.19  0.060 / 0.060
G18     92.1           19.8                7.8 +/-    0.94      17.3 +/-    0.94  0.060 / 0.060
G28     285.9          55.1                5.5 +/-    0.91       6.5 +/-    0.91  0.030 / 0.030
G30     341.0          66.3                2.5 +/-    0.53       2.7 +/-    0.53  0.030 / 0.040