PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/21-14:27:50
G01     249.9          35.5                7.9 +/-    2.16      12.5 +/-    2.16  0.070 / 0.080
G03     316.0          48.0                5.7 +/-    0.49       7.4 +/-    0.49  0.080 / 0.090
G11     235.8          11.3                6.7 +/-    2.02      18.3 +/-    2.02  0.040 / 0.090
G14     61.1           39.9                5.9 +/-    1.24       8.6 +/-    1.24  0.050 / 0.080
G18     217.6          26.1                6.9 +/-    2.03      13.2 +/-    2.03  0.050 / 0.070
G22     300.8          70.4                6.8 +/-    0.82       7.2 +/-    0.82  0.060 / 0.060
G23     286.6          19.0                3.0 +/-    5.52       6.6 +/-    5.52  0.080 / 0.080
G26     140.8          36.9                9.4 +/-    1.05      14.4 +/-    1.05  0.080 / 0.100
G31     41.1           60.1                5.6 +/-    0.58       6.3 +/-    0.58  0.040 / 0.030
G32     75.2           26.5                5.7 +/-    1.07      10.8 +/-    1.07  0.040 / 0.030