PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-23:43:10
G10     308.9          55.7                9.9 +/-    0.56      11.7 +/-    0.56  0.060 / 0.090
G14     211.8          16.1               14.1 +/-    3.41      34.2 +/-    3.41  0.090 / 0.080
G15     45.6           22.7                6.4 +/-    0.78      13.2 +/-    0.78  0.220 / 0.430
G20     7.4            64.5                8.7 +/-    0.46       9.5 +/-    0.46  0.140 / 0.290
G21     111.8          70.7               10.6 +/-    0.93      11.1 +/-    0.93  0.030 / 0.040
G24     91.9           28.7                9.4 +/-    1.68      17.0 +/-    1.68  0.030 / 0.030
G27     294.1          36.4               10.9 +/-    0.97      16.8 +/-    0.97  0.030 / 0.040
G32     213.0          37.5               13.4 +/-    1.01      20.3 +/-    1.01  0.040 / 0.040