PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/20-23:12:50
G08     266.8          16.8               11.5 +/-    0.96      27.4 +/-    0.96  0.120 / 0.320
G10     69.2           55.3                9.6 +/-    0.86      11.4 +/-    0.86  0.170 / 0.320
G11     310.4          17.7                3.5 +/-   17.24       8.1 +/-   17.24  0.040 / 0.050
G14     269.9          66.1                9.2 +/-    0.78      10.0 +/-    0.78  0.040 / 0.080
G18     310.5          35.2                9.1 +/-    1.20      14.5 +/-    1.20  0.070 / 0.110
G20     99.5           33.1                9.2 +/-    1.04      15.1 +/-    1.04  0.070 / 0.130
G21     155.9          13.0                9.1 +/-    1.26      23.7 +/-    1.26  0.140 / 0.220
G27     229.3          14.0               11.8 +/-    1.38      30.1 +/-    1.38  0.150 / 0.200
G31     176.4          34.9                9.5 +/-    1.29      15.1 +/-    1.29  0.110 / 0.230
G32     351.5          72.4                8.3 +/-    0.78       8.7 +/-    0.78  0.130 / 0.470