PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-20:12:50
G01     286.8          41.2                9.1 +/-    1.11      12.9 +/-    1.11  0.050 / 0.070
G03     312.9          19.3                8.4 +/-    1.60      18.9 +/-    1.60  0.050 / 0.090
G10     122.0          25.5               11.8 +/-    0.67      22.7 +/-    0.67  0.080 / 0.110
G11     260.2          24.7               11.5 +/-    1.11      22.7 +/-    1.11  0.090 / 0.100
G14     29.5           56.6                7.0 +/-    0.70       8.2 +/-    0.70  0.090 / 0.210
G18     243.5          46.1               11.9 +/-    1.01      15.8 +/-    1.01  0.080 / 0.210
G22     314.3          40.7                8.2 +/-    1.91      11.8 +/-    1.91  0.040 / 0.060
G25     58.2           16.0                8.1 +/-    2.21      19.6 +/-    2.21  0.040 / 0.050
G31     133.9          80.2               10.3 +/-    0.94      10.4 +/-    0.94  0.050 / 0.080
G32     53.2           40.7                8.2 +/-    0.36      11.8 +/-    0.36  0.050 / 0.100