PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-07:58:00
G01     243.7          32.6                7.9 +/-    1.38      13.2 +/-    1.38  0.080 / 0.130
G03     314.6          50.7                5.1 +/-    1.33       6.3 +/-    1.33  0.090 / 0.110
G14     65.2           37.8                3.2 +/-    1.03       4.8 +/-    1.03  0.030 / 0.040
G16     160.6          22.6                6.1 +/-    1.96      12.6 +/-    1.96  0.040 / 0.040
G18     215.7          22.7                6.7 +/-    1.88      13.9 +/-    1.88  0.070 / 0.070
G22     293.8          71.3                5.3 +/-    0.86       5.5 +/-    0.86  0.050 / 0.080
G23     292.2          25.7                6.3 +/-    1.82      12.1 +/-    1.82  0.050 / 0.090
G26     131.7          42.2                6.2 +/-    0.99       8.8 +/-    0.99  0.050 / 0.110
G31     41.2           51.7                2.9 +/-    0.71       3.5 +/-    0.71  0.080 / 0.220
G32     80.6           21.3                3.8 +/-    1.19       8.0 +/-    1.19  0.080 / 0.190