PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-11:27:50
G03     316.4          33.7                3.1 +/-    1.57       5.0 +/-    1.57  0.110 / 0.270
G10     129.1          16.4                5.8 +/-    1.54      13.8 +/-    1.54  0.120 / 0.270
G11     250.2          19.8                7.8 +/-    1.63      17.3 +/-    1.63  0.050 / 0.060
G14     43.0           50.1                3.4 +/-    0.43       4.2 +/-    0.43  0.040 / 0.060
G18     232.2          39.2                7.9 +/-    1.40      11.6 +/-    1.40  0.080 / 0.170
G22     314.6          55.6                4.3 +/-    0.92       5.1 +/-    0.92  0.070 / 0.140
G25     52.8           16.3                2.9 +/-    0.75       6.9 +/-    0.75  0.040 / 0.070
G26     150.9          23.4                5.7 +/-    1.40      11.5 +/-    1.40  0.040 / 0.070
G31     59.3           75.1                5.7 +/-    1.15       5.9 +/-    1.15  0.090 / 0.210
G32     60.3           37.0                3.6 +/-    1.05       5.5 +/-    1.05  0.130 / 0.250