PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-05:27:50
G01     114.3          21.1                8.1 +/-    0.59      17.2 +/-    0.59  0.030 / 0.030
G07     95.3           61.9                6.4 +/-    0.59       7.1 +/-    0.59  0.040 / 0.030
G08     42.5           24.3                1.8 +/-    1.84       3.6 +/-    1.84  0.040 / 0.040
G09     174.0          17.9                6.8 +/-    1.08      15.8 +/-    1.08  0.030 / 0.040
G11     97.1           41.7                7.5 +/-    0.49      10.7 +/-    0.49  0.070 / 0.210
G13     314.6          23.9                4.0 +/-    1.15       8.0 +/-    1.15  0.100 / 0.240
G17     202.0          32.6                7.0 +/-    1.78      11.6 +/-    1.78  0.040 / 0.110
G28     299.8          58.3                4.2 +/-    0.57       4.8 +/-    0.57  0.070 / 0.080
G30     352.9          72.1                5.3 +/-    1.05       5.6 +/-    1.05  0.050 / 0.070