PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-21:13:10
G05     51.1           11.9                6.2 +/-    2.06      16.7 +/-    2.06  0.080 / 0.490
G10     240.6          19.2               11.1 +/-    1.63      24.9 +/-    1.63  0.130 / 0.550
G13     66.1           34.1                8.4 +/-    1.69      13.5 +/-    1.69  0.040 / 0.050
G15     112.8          56.2                9.9 +/-    0.56      11.7 +/-    0.56  0.040 / 0.050
G16     308.0          14.4                4.9 +/-    4.24      12.4 +/-    4.24  0.080 / 0.100
G20     255.3          42.3                9.2 +/-    2.19      12.8 +/-    2.19  0.060 / 0.130
G21     319.6          50.7                9.2 +/-    0.54      11.4 +/-    0.54  0.030 / 0.040
G26     280.6          19.2                7.8 +/-    0.88      17.5 +/-    0.88  0.030 / 0.040
G29     158.0          64.5                9.5 +/-    0.60      10.4 +/-    0.60  0.090 / 0.210