PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/31-20:57:30
G08     301.7          21.9               10.6 +/-    1.39      22.3 +/-    1.39  0.060 / 0.080
G10     345.8          61.7                9.5 +/-    0.64      10.7 +/-    0.64  0.060 / 0.110
G14     223.0          39.1               13.2 +/-    2.65      19.4 +/-    2.65  0.040 / 0.070
G18     51.9           55.2               10.4 +/-    0.28      12.4 +/-    0.28  0.050 / 0.080
G21     140.2          46.1               12.8 +/-    0.91      17.0 +/-    0.91  0.050 / 0.090
G24     66.6           29.6               10.3 +/-    0.69      18.2 +/-    0.69  0.050 / 0.080
G27     263.2          35.5               13.2 +/-    1.37      20.7 +/-    1.37  0.060 / 0.130
G32     231.2          57.1               14.7 +/-    0.96      17.1 +/-    0.96  0.050 / 0.100