PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-03:12:50
G01     255.4          37.1                9.4 +/-    1.09      14.3 +/-    1.09  0.110 / 0.660
G03     316.3          38.0                6.1 +/-    1.10       9.2 +/-    1.10  0.230 / 0.320
G11     238.8          14.9                4.6 +/-    5.81      11.4 +/-    5.81  0.070 / 0.090
G14     57.6           41.9                5.5 +/-    1.54       7.8 +/-    1.54  0.070 / 0.100
G22     309.1          61.8                5.3 +/-    0.91       5.9 +/-    0.91  0.030 / 0.030
G23     283.1          15.6                4.7 +/-   10.62      11.6 +/-   10.62  0.030 / 0.030
G25     40.7           10.6                7.3 +/-    3.53      20.1 +/-    3.53  0.030 / 0.030
G26     143.8          33.2                9.8 +/-    1.12      16.1 +/-    1.12  0.030 / 0.030
G31     41.6           65.6                5.7 +/-    0.58       6.2 +/-    0.58  0.100 / 0.280
G32     72.6           28.0                5.2 +/-    2.04       9.5 +/-    2.04  0.140 / 0.290