PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-13:12:30
G01     221.9          13.4               14.6 +/-    3.83      37.6 +/-    3.83  0.160 / 0.350
G03     257.3          72.6                7.6 +/-    0.45       7.9 +/-    0.45  0.130 / 0.370
G14     91.1           20.4                7.8 +/-    0.97      16.9 +/-    0.97  0.050 / 0.040
G16     146.0          48.0                9.9 +/-    1.04      12.8 +/-    1.04  0.050 / 0.050
G22     197.7          63.3                8.1 +/-    1.91       8.9 +/-    1.91  0.030 / 0.050
G23     311.5          41.5                6.1 +/-    1.14       8.7 +/-    1.14  0.040 / 0.040
G26     91.6           55.5                7.9 +/-    0.57       9.3 +/-    0.57  0.110 / 0.190
G31     47.4           28.2                5.0 +/-    0.86       9.0 +/-    0.86  0.120 / 0.270