PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/09-22:12:50
G01     256.4          37.4                8.8 +/-    1.95      13.4 +/-    1.95  0.030 / 0.040
G03     316.4          39.2                6.2 +/-    0.80       9.1 +/-    0.80  0.050 / 0.040
G11     241.2          15.2               10.2 +/-    1.98      25.3 +/-    1.98  0.170 / 0.180
G14     55.9           43.2                7.2 +/-    1.45      10.0 +/-    1.45  0.180 / 0.230
G22     309.5          61.3                6.1 +/-    1.15       6.8 +/-    1.15  0.020 / 0.030
G23     283.0          16.0                3.3 +/-    9.80       8.0 +/-    9.80  0.030 / 0.030
G25     42.8           12.3                6.7 +/-    3.08      17.8 +/-    3.08  0.070 / 0.100
G26     142.5          33.4                9.9 +/-    0.83      16.1 +/-    0.83  0.060 / 0.090
G31     42.1           65.5                7.3 +/-    0.58       7.9 +/-    0.58  0.050 / 0.080
G32     73.1           26.5                6.3 +/-    1.10      11.9 +/-    1.10  0.060 / 0.080