PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/16-10:12:50
G01     319.5          17.4                4.9 +/-    2.37      11.4 +/-    2.37  0.220 / 0.210
G08     258.3          14.1                5.6 +/-    3.91      14.3 +/-    3.91  0.100 / 0.190
G10     78.2           52.9                6.8 +/-    0.73       8.2 +/-    0.73  0.040 / 0.030
G11     303.6          22.9                4.3 +/-    0.94       8.9 +/-    0.94  0.040 / 0.040
G14     293.9          71.0                4.7 +/-    0.68       5.0 +/-    0.68  0.060 / 0.060
G18     304.7          41.3                6.2 +/-    2.01       8.8 +/-    2.01  0.040 / 0.050
G20     104.3          29.9                6.8 +/-    1.43      12.0 +/-    1.43  0.020 / 0.020
G22     301.6          14.2               -0.5 +/-    3.79      -1.2 +/-    3.79  0.040 / 0.020
G31     177.0          39.5                7.3 +/-    1.00      10.8 +/-    1.00  0.110 / 0.230
G32     347.6          71.1                5.5 +/-    0.79       5.8 +/-    0.79  0.090 / 0.260