PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-17:57:40
G01     317.9          22.2                6.2 +/-    1.63      12.9 +/-    1.63  0.090 / 0.200
G08     255.0          12.5                9.8 +/-    1.40      25.7 +/-    1.40  0.170 / 0.260
G10     83.9           50.0                8.7 +/-    0.92      11.0 +/-    0.92  0.040 / 0.050
G11     304.8          20.7                6.0 +/-    1.30      13.0 +/-    1.30  0.040 / 0.050
G14     290.7          68.9                8.9 +/-    1.07       9.5 +/-    1.07  0.190 / 0.260
G20     108.4          24.5                9.2 +/-    1.57      18.2 +/-    1.57  0.220 / 0.290
G22     301.9          10.7               -0.9 +/-    4.84      -2.5 +/-    4.84  0.040 / 0.040
G31     175.8          43.4               11.3 +/-    0.66      15.6 +/-    0.66  0.050 / 0.030
G32     14.8           65.1                7.7 +/-    0.73       8.4 +/-    0.73  0.070 / 0.050