PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/21-11:43:10
G01     271.3          41.8                7.4 +/-    1.30      10.4 +/-    1.30  0.040 / 0.050
G03     316.4          33.8                5.2 +/-    2.20       8.4 +/-    2.20  0.040 / 0.060
G10     129.0          16.6                5.0 +/-    1.42      11.9 +/-    1.42  0.060 / 0.080
G11     250.4          19.9                6.9 +/-    2.06      15.2 +/-    2.06  0.050 / 0.080
G14     42.8           50.2                4.3 +/-    0.45       5.4 +/-    0.45  0.080 / 0.160
G18     232.3          39.3                7.4 +/-    1.67      10.9 +/-    1.67  0.080 / 0.160
G22     314.6          55.8                5.8 +/-    1.09       6.8 +/-    1.09  0.110 / 0.220
G25     52.9           16.3                2.8 +/-    1.10       6.7 +/-    1.10  0.110 / 0.240
G31     60.0           75.4                7.1 +/-    0.67       7.3 +/-    0.67  0.050 / 0.070
G32     60.0           37.3                3.6 +/-    0.97       5.4 +/-    0.97  0.040 / 0.070