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                8.5 +/-    3.46      23.3 +/-    3.46  0.040 / 0.070
G10     242.1          20.7               13.5 +/-    0.99      29.1 +/-    0.99  0.040 / 0.070
G13     63.7           33.4                8.5 +/-    0.47      14.0 +/-    0.47  0.160 / 0.510
G15     109.9          57.0               11.4 +/-    0.43      13.3 +/-    0.43  0.150 / 0.510
G16     305.8          15.0                6.7 +/-    3.59      16.6 +/-    3.59  0.060 / 0.140
G20     257.7          44.2               11.1 +/-    0.80      15.1 +/-    0.80  0.060 / 0.140
G21     321.7          52.1               12.1 +/-    1.08      14.9 +/-    1.08  0.100 / 0.120
G26     278.4          18.8                8.8 +/-    1.33      20.0 +/-    1.33  0.110 / 0.150
G29     159.3          62.6               11.3 +/-    1.39      12.5 +/-    1.39  0.240 / 0.300