PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/04-21:57:30
G05     51.0           12.0                7.0 +/-    1.84      18.8 +/-    1.84  0.090 / 0.360
G10     240.3          18.8               12.1 +/-    1.92      27.3 +/-    1.92  0.090 / 0.430
G13     66.7           34.2                7.5 +/-    1.20      12.1 +/-    1.20  0.040 / 0.060
G15     113.1          55.9               10.4 +/-    0.41      12.2 +/-    0.41  0.040 / 0.070
G16     308.6          14.2                7.5 +/-    1.04      19.1 +/-    1.04  0.040 / 0.140
G20     254.6          41.7               11.6 +/-    0.71      16.5 +/-    0.71  0.050 / 0.130
G21     319.2          50.5               10.8 +/-    1.25      13.5 +/-    1.25  0.180 / 0.250
G26     281.2          19.3                7.6 +/-    1.65      17.1 +/-    1.65  0.090 / 0.250
G29     157.6          64.8                9.3 +/-    0.99      10.2 +/-    0.99  0.190 / 0.200