PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-04:43:00
G10     251.8          28.9                6.9 +/-    1.06      12.4 +/-    1.06  0.060 / 0.140
G13     51.8           28.2                4.0 +/-    1.76       7.3 +/-    1.76  0.060 / 0.090
G15     81.2           56.4                5.0 +/-    0.92       5.9 +/-    0.92  0.060 / 0.040
G16     297.5          14.5                5.1 +/-    1.41      12.7 +/-    1.41  0.040 / 0.030
G20     272.2          51.9                6.5 +/-    2.42       8.0 +/-    2.42  0.080 / 0.220
G21     338.1          61.9                5.3 +/-    0.60       5.9 +/-    0.60  0.080 / 0.210
G26     269.0          14.8                5.8 +/-    1.91      14.6 +/-    1.91  0.040 / 0.040
G29     162.2          44.8                5.8 +/-    0.76       7.9 +/-    0.76  0.040 / 0.030