PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-00:57:50
G10     248.8          26.6               13.1 +/-    2.29      24.8 +/-    2.29  0.040 / 0.050
G13     55.0           30.0                8.6 +/-    0.88      15.0 +/-    0.88  0.040 / 0.050
G15     89.1           57.4               10.5 +/-    0.70      12.3 +/-    0.70  0.100 / 0.140
G16     299.1          15.2                6.0 +/-    1.60      14.9 +/-    1.60  0.090 / 0.140
G20     267.2          49.3               11.3 +/-    0.85      14.4 +/-    0.85  0.120 / 0.560
G21     331.5          58.4                8.2 +/-    0.70       9.5 +/-    0.70  0.120 / 0.530
G26     271.0          16.2               12.5 +/-    2.62      30.2 +/-    2.62  0.060 / 0.160
G29     162.0          51.0               12.3 +/-    0.83      15.3 +/-    0.83  0.060 / 0.160