PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/21-05:58:10
G01     316.7          23.8                3.8 +/-    1.65       7.7 +/-    1.65  0.100 / 0.290
G10     89.0           48.4                5.0 +/-    1.32       6.5 +/-    1.32  0.110 / 0.310
G11     297.4          25.2                5.0 +/-    0.94       9.7 +/-    0.94  0.040 / 0.020
G14     315.2          71.4                4.8 +/-    0.47       5.0 +/-    0.47  0.060 / 0.030
G18     297.7          45.3                6.4 +/-    2.07       8.6 +/-    2.07  0.110 / 0.100
G20     110.3          24.9                4.5 +/-    1.92       8.9 +/-    1.92  0.130 / 0.050
G22     304.2          15.5                4.5 +/-    1.20      11.2 +/-    1.20  0.040 / 0.050
G31     173.1          49.2                7.6 +/-    0.61       9.7 +/-    0.61  0.040 / 0.040
G32     13.1           64.9                3.0 +/-    1.22       3.3 +/-    1.22  0.110 / 0.110