PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-04:12:50
G01     249.6          34.7                7.9 +/-    2.08      12.7 +/-    2.08  0.170 / 0.190
G03     315.8          42.5                5.7 +/-    0.72       8.0 +/-    0.72  0.070 / 0.150
G11     234.6          12.3                6.5 +/-    1.91      17.2 +/-    1.91  0.070 / 0.090
G14     62.7           38.8                5.3 +/-    0.95       7.8 +/-    0.95  0.090 / 0.100
G16     164.8          17.7                6.8 +/-    2.41      15.8 +/-    2.41  0.030 / 0.030
G22     303.9          66.5                5.9 +/-    0.95       6.3 +/-    0.95  0.030 / 0.030
G23     286.7          18.6                6.1 +/-    1.39      13.9 +/-    1.39  0.060 / 0.080
G26     139.2          37.7                7.4 +/-    0.64      11.1 +/-    0.64  0.050 / 0.090
G31     39.9           59.8                4.8 +/-    0.59       5.5 +/-    0.59  0.030 / 0.030
G32     77.0           24.5                5.2 +/-    2.10      10.3 +/-    2.10  0.030 / 0.030