PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/17-23:42:50
G01     317.6          20.9                7.3 +/-    3.98      15.6 +/-    3.98  0.190 / 0.320
G08     253.2          11.3               10.2 +/-    1.95      27.6 +/-    1.95  0.130 / 0.270
G10     84.4           52.0                9.5 +/-    0.61      11.8 +/-    0.61  0.110 / 0.250
G11     299.1          25.5                9.0 +/-    1.27      17.3 +/-    1.27  0.100 / 0.220
G14     312.4          71.5                8.8 +/-    0.79       9.2 +/-    0.79  0.070 / 0.060
G18     104.9          26.2               10.6 +/-    0.94      20.2 +/-    0.94  0.050 / 0.060
G22     302.0          12.2                8.6 +/-    2.68      22.8 +/-    2.68  0.030 / 0.030
G31     178.8          42.7               11.9 +/-    1.88      16.7 +/-    1.88  0.030 / 0.040
G32     7.3            66.7                8.8 +/-    0.32       9.4 +/-    0.32  0.050 / 0.040