PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-17:27:30
G08     310.7          18.6                7.7 +/-    2.79      17.6 +/-    2.79  0.050 / 0.090
G10     333.6          60.4                7.9 +/-    0.57       9.0 +/-    0.57  0.050 / 0.080
G14     217.3          24.9               10.0 +/-    1.44      19.6 +/-    1.44  0.110 / 0.300
G20     40.4           59.1                8.5 +/-    0.75       9.7 +/-    0.75  0.110 / 0.260
G21     133.2          58.0                9.7 +/-    0.55      11.2 +/-    0.55  0.040 / 0.060
G24     77.0           30.7                8.4 +/-    0.75      14.5 +/-    0.75  0.030 / 0.050
G27     276.5          38.1               10.0 +/-    0.98      15.0 +/-    0.98  0.030 / 0.030
G32     221.3          52.8                8.9 +/-    1.56      10.8 +/-    1.56  0.030 / 0.040