PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-07:12:40
G01     114.1          19.8                6.5 +/-    1.10      14.5 +/-    1.10  0.030 / 0.050
G07     90.6           63.6                5.4 +/-    0.87       5.9 +/-    0.87  0.030 / 0.050
G08     44.0           29.7                4.4 +/-    1.26       7.8 +/-    1.26  0.030 / 0.060
G09     175.1          21.4                5.1 +/-    2.70      10.8 +/-    2.70  0.030 / 0.060
G11     104.6          42.7                6.9 +/-    0.76       9.7 +/-    0.76  0.150 / 0.230
G13     315.3          23.5                3.9 +/-    1.20       8.0 +/-    1.20  0.220 / 0.300
G17     202.1          26.8                4.5 +/-    1.98       8.5 +/-    1.98  0.110 / 0.110
G28     287.7          53.8                5.6 +/-    2.89       6.8 +/-    2.89  0.070 / 0.110
G30     346.8          70.1                4.9 +/-    0.32       5.2 +/-    0.32  0.140 / 0.120