PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-05:57:40
G01     56.8           29.2                5.4 +/-    1.53       9.6 +/-    1.53  0.050 / 0.040
G06     179.9          16.9                5.8 +/-    2.17      13.7 +/-    2.17  0.040 / 0.050
G07     143.3          17.4                8.8 +/-    1.93      20.6 +/-    1.93  0.080 / 0.090
G11     46.2           19.8                4.5 +/-    2.27       9.9 +/-    2.27  0.080 / 0.080
G13     258.2          34.4               10.4 +/-    0.83      16.7 +/-    0.83  0.040 / 0.050
G15     292.4          15.7                3.4 +/-    1.22       8.3 +/-    1.22  0.040 / 0.040
G17     285.3          80.0               10.3 +/-    0.67      10.4 +/-    0.67  0.070 / 0.170
G19     235.2          51.1               10.6 +/-    1.69      13.1 +/-    1.69  0.100 / 0.180
G28     37.7           56.8                9.2 +/-    1.00      10.7 +/-    1.00  0.120 / 0.150
G30     146.2          50.6               11.2 +/-    1.04      14.0 +/-    1.04  0.080 / 0.130