PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-21:27:30
G03     263.4          70.1                8.9 +/-    0.98       9.4 +/-    0.98  0.050 / 0.050
G09     301.1          18.3                8.9 +/-    3.24      20.5 +/-    3.24  0.040 / 0.050
G14     92.2           22.1                8.5 +/-    2.43      17.9 +/-    2.43  0.110 / 0.200
G16     133.5          53.4               10.3 +/-    0.53      12.5 +/-    0.53  0.130 / 0.220
G22     203.9          62.4                8.8 +/-    0.66       9.8 +/-    0.66  0.060 / 0.070
G23     313.8          43.6                8.4 +/-    0.68      11.5 +/-    0.68  0.040 / 0.070
G26     80.8           53.9                7.0 +/-    0.72       8.4 +/-    0.72  0.050 / 0.030
G31     49.1           25.0                6.8 +/-    1.94      13.2 +/-    1.94  0.040 / 0.030