PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/04-18:27:50
G01     317.7          22.6                5.7 +/-    1.87      11.8 +/-    1.87  0.190 / 0.310
G08     254.7          12.2                9.0 +/-    4.77      23.9 +/-    4.77  0.130 / 0.290
G10     84.7           49.7                8.5 +/-    0.77      10.8 +/-    0.77  0.040 / 0.050
G11     304.0          21.2                5.9 +/-    1.47      12.7 +/-    1.47  0.040 / 0.040
G14     291.8          68.9                8.1 +/-    1.11       8.6 +/-    1.11  0.260 / 0.350
G20     108.8          24.2                9.5 +/-    0.99      18.8 +/-    0.99  0.250 / 0.310
G22     302.2          11.0                0.7 +/-   11.16       1.8 +/-   11.16  0.050 / 0.050
G31     175.4          44.2                9.1 +/-    0.72      12.4 +/-    0.72  0.040 / 0.050
G32     15.6           64.7                7.5 +/-    0.73       8.2 +/-    0.73  0.040 / 0.030