PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/31-20:12:40
G05     51.9           10.9                7.7 +/-    2.18      21.0 +/-    2.18  0.050 / 0.060
G10     242.1          20.7               12.5 +/-    2.99      27.1 +/-    2.99  0.050 / 0.060
G13     63.7           33.4                7.7 +/-    1.17      12.6 +/-    1.17  0.070 / 0.130
G15     109.9          57.0               10.3 +/-    0.84      12.0 +/-    0.84  0.080 / 0.120
G16     305.8          15.0                6.2 +/-    1.56      15.5 +/-    1.56  0.030 / 0.030
G20     257.7          44.2               10.0 +/-    3.56      13.7 +/-    3.56  0.040 / 0.040
G21     321.7          52.1                9.8 +/-    0.81      12.1 +/-    0.81  0.090 / 0.160
G26     278.4          18.8                8.2 +/-    1.20      18.7 +/-    1.20  0.090 / 0.190
G29     159.3          62.6               10.2 +/-    0.76      11.3 +/-    0.76  0.090 / 0.320