PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-16:42:50
G02     71.1           23.0               12.9 +/-    1.10      26.3 +/-    1.10  0.030 / 0.050
G05     47.3           50.9               11.7 +/-    1.10      14.6 +/-    1.10  0.030 / 0.050
G12     183.0          19.4               17.4 +/-    1.76      38.9 +/-    1.76  0.040 / 0.040
G13     118.2          24.4               17.2 +/-    1.20      34.2 +/-    1.20  0.050 / 0.040
G15     155.5          23.6               18.6 +/-    1.36      37.6 +/-    1.36  0.090 / 0.300
G18     222.5          13.7               15.4 +/-    1.50      39.5 +/-    1.50  0.070 / 0.250
G20     220.8          74.4               14.0 +/-    0.62      14.5 +/-    0.62  0.060 / 0.190
G21     283.7          28.1               10.8 +/-    1.87      19.7 +/-    1.87  0.100 / 0.200
G25     218.9          40.0               18.9 +/-    0.79      27.5 +/-    0.79  0.040 / 0.080
G29     349.2          73.9               12.4 +/-    0.61      12.9 +/-    0.61  0.070 / 0.090