PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-09:12:30
G02     234.0          72.6                8.2 +/-    0.73       8.6 +/-    0.73  0.030 / 0.050
G05     174.3          12.3                7.7 +/-    2.15      20.4 +/-    2.15  0.030 / 0.060
G06     41.4           63.0                8.3 +/-    0.57       9.2 +/-    0.57  0.040 / 0.060
G12     321.2          48.4                6.4 +/-    1.64       8.2 +/-    1.64  0.050 / 0.060
G17     69.5           21.8                7.3 +/-    0.97      15.4 +/-    0.97  0.190 / 0.330
G19     51.7           42.5                8.6 +/-    1.19      12.0 +/-    1.19  0.210 / 0.440
G24     242.7          36.1               10.4 +/-    1.68      16.2 +/-    1.68  0.080 / 0.230
G25     316.1          15.1               11.5 +/-    2.66      28.6 +/-    2.66  0.070 / 0.220