PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/19-05:13:00
G03     194.6          27.1                0.4 +/-   32.80       0.7 +/-   32.80  0.160 / 0.410
G07     286.3          35.7               -3.6 +/-   31.50      -5.6 +/-   31.50  0.140 / 0.320
G08     143.3          24.6                7.8 +/-    3.30      15.4 +/-    3.30  0.080 / 0.200
G09     321.3          58.9               -7.1 +/-   30.60      -8.1 +/-   30.60  0.070 / 0.150
G16     45.5           48.6                4.9 +/-    1.87       6.2 +/-    1.87  0.050 / 0.070
G22     179.2          11.7                2.8 +/-   22.36       7.4 +/-   22.36  0.040 / 0.060
G23     70.1           83.7               -9.3 +/-   32.41      -9.4 +/-   32.41  0.070 / 0.310
G26     43.3           20.5                2.4 +/-    2.52       5.2 +/-    2.52  0.060 / 0.190
G27     103.8          31.5                5.7 +/-   11.02       9.6 +/-   11.02  0.070 / 0.250