PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/10-21:57:50
G10     248.8          26.8                8.9 +/-    2.26      16.6 +/-    2.26  0.250 / 0.700
G13     54.8           29.8                7.4 +/-    0.70      13.0 +/-    0.70  0.170 / 0.650
G15     90.7           57.9                9.2 +/-    0.58      10.7 +/-    0.58  0.040 / 0.060
G16     297.9          15.6                5.4 +/-    8.53      13.1 +/-    8.53  0.040 / 0.050
G20     267.5          49.5                8.1 +/-    1.12      10.3 +/-    1.12  0.060 / 0.160
G21     330.9          58.0                7.2 +/-    0.70       8.4 +/-    0.70  0.060 / 0.150
G26     270.2          16.2               10.2 +/-    2.75      24.7 +/-    2.75  0.090 / 0.130
G29     162.7          52.3                8.4 +/-    0.97      10.3 +/-    0.97  0.070 / 0.150