PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/20-19:12:50
G01     301.8          36.8                9.4 +/-    1.51      14.4 +/-    1.51  0.050 / 0.100
G10     111.7          35.1               10.7 +/-    0.71      16.9 +/-    0.71  0.070 / 0.090
G11     273.7          27.9                8.4 +/-    1.20      15.4 +/-    1.20  0.050 / 0.060
G14     10.1           63.8                7.4 +/-    0.66       8.2 +/-    0.66  0.040 / 0.070
G18     262.4          51.0               11.5 +/-    1.53      14.3 +/-    1.53  0.040 / 0.070
G22     311.7          30.2                8.8 +/-    1.10      15.3 +/-    1.10  0.050 / 0.070
G25     70.8           16.2                7.7 +/-    1.00      18.5 +/-    1.00  0.090 / 0.230
G31     169.3          68.0               10.6 +/-    0.77      11.3 +/-    0.77  0.090 / 0.190
G32     40.9           49.4                7.9 +/-    0.61      10.1 +/-    0.61  0.070 / 0.120