PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-18:42:50
G05     51.7           11.7                8.6 +/-    1.64      23.1 +/-    1.64  0.220 / 0.200
G10     242.1          20.8               13.0 +/-    1.11      28.1 +/-    1.11  0.120 / 0.300
G13     63.7           33.4                9.2 +/-    0.47      15.0 +/-    0.47  0.040 / 0.070
G15     108.3          56.9               10.7 +/-    0.61      12.6 +/-    0.61  0.040 / 0.070
G16     305.5          15.2                7.0 +/-    3.95      17.2 +/-    3.95  0.050 / 0.130
G20     258.0          44.8               10.8 +/-    1.86      14.7 +/-    1.86  0.060 / 0.110
G21     321.9          52.2               11.9 +/-    1.31      14.6 +/-    1.31  0.150 / 0.740
G26     278.3          18.8                9.8 +/-    0.71      22.1 +/-    0.71  0.130 / 0.800
G29     159.5          62.9               12.3 +/-    1.61      13.6 +/-    1.61  0.030 / 0.040