PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-22:12:30
G03     240.4          68.3                8.1 +/-    0.71       8.6 +/-    0.71  0.040 / 0.050
G09     305.4          23.2                6.6 +/-    2.71      13.5 +/-    2.71  0.060 / 0.050
G14     98.3           17.7               10.0 +/-    1.38      23.3 +/-    1.38  0.110 / 0.260
G16     121.2          58.8               10.1 +/-    0.45      11.6 +/-    0.45  0.120 / 0.260
G22     197.3          55.1                8.2 +/-    0.40       9.8 +/-    0.40  0.040 / 0.050
G23     319.5          49.3                7.7 +/-    0.82       9.8 +/-    0.82  0.040 / 0.040
G26     68.5           51.2                5.7 +/-    1.51       7.1 +/-    1.51  0.030 / 0.030
G31     52.7           19.1                6.4 +/-    2.57      14.4 +/-    2.57  0.040 / 0.030