PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-04:43:00
G01     253.1          36.3                9.6 +/-    1.60      14.9 +/-    1.60  0.100 / 0.220
G03     316.2          39.5                7.2 +/-    0.51      10.6 +/-    0.51  0.090 / 0.240
G11     236.8          14.0                7.8 +/-    1.88      19.8 +/-    1.88  0.040 / 0.040
G14     59.6           40.6                6.2 +/-    1.35       8.9 +/-    1.35  0.040 / 0.030
G16     165.8          15.3               -0.8 +/-   16.41      -1.9 +/-   16.41  0.080 / 0.080
G22     307.3          64.0                8.4 +/-    0.70       9.2 +/-    0.70  0.070 / 0.070
G23     284.4          16.8               10.2 +/-    1.23      24.2 +/-    1.23  0.030 / 0.030
G26     141.2          35.2               10.2 +/-    1.34      16.1 +/-    1.34  0.030 / 0.020
G31     40.9           62.5                8.1 +/-    0.47       9.0 +/-    0.47  0.190 / 0.320
G32     74.6           26.1                7.5 +/-    1.59      14.4 +/-    1.59  0.230 / 0.370