PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-08:58:00
G01     244.5          33.0                6.1 +/-    1.79      10.1 +/-    1.79  0.040 / 0.040
G03     314.8          50.9                4.4 +/-    1.14       5.5 +/-    1.14  0.040 / 0.030
G14     64.8           37.9                3.1 +/-    1.69       4.7 +/-    1.69  0.050 / 0.070
G16     161.3          21.7                5.2 +/-    2.09      11.0 +/-    2.09  0.040 / 0.070
G18     216.0          23.1                6.0 +/-    1.93      12.3 +/-    1.93  0.150 / 0.110
G22     294.3          71.6                4.4 +/-    0.80       4.6 +/-    0.80  0.090 / 0.090
G23     291.4          24.6                5.0 +/-    1.30       9.8 +/-    1.30  0.050 / 0.090
G26     132.9          41.6                5.3 +/-    1.39       7.5 +/-    1.39  0.050 / 0.090
G31     41.1           52.7                3.3 +/-    0.76       4.1 +/-    0.76  0.080 / 0.140
G32     79.8           22.2                3.2 +/-    1.67       6.7 +/-    1.67  0.070 / 0.160