PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/18-19:12:50
G01     112.3          21.9               13.3 +/-    1.04      28.0 +/-    1.04  0.030 / 0.030
G07     102.0          56.6               12.2 +/-    0.33      14.3 +/-    0.33  0.030 / 0.030
G08     42.6           24.7                9.3 +/-    1.37      18.3 +/-    1.37  0.030 / 0.050
G09     176.6          20.4               14.6 +/-    1.83      31.9 +/-    1.83  0.030 / 0.050
G11     95.5           42.4               12.6 +/-    0.59      17.7 +/-    0.59  0.040 / 0.070
G13     313.5          25.5               10.6 +/-    0.91      20.5 +/-    0.91  0.050 / 0.060
G17     202.8          32.3               13.0 +/-    2.03      21.7 +/-    2.03  0.100 / 0.250
G18     84.4           22.7                9.5 +/-    0.90      19.6 +/-    0.90  0.110 / 0.180
G28     298.2          57.3               12.2 +/-    0.77      14.2 +/-    0.77  0.090 / 0.240
G30     7.4            75.2               12.3 +/-    0.39      12.6 +/-    0.39  0.090 / 0.250