PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-18:28:00
G08     296.4          22.6                8.1 +/-    1.79      16.7 +/-    1.79  0.100 / 0.090
G10     359.3          62.8                8.5 +/-    0.61       9.4 +/-    0.61  0.080 / 0.090
G14     227.6          44.0               11.8 +/-    2.14      16.1 +/-    2.14  0.050 / 0.080
G18     61.4           51.5                7.8 +/-    0.70       9.7 +/-    0.70  0.090 / 0.070
G21     143.8          37.8               10.1 +/-    0.83      15.2 +/-    0.83  0.080 / 0.110
G24     59.9           27.6                6.3 +/-    1.84      11.6 +/-    1.84  0.100 / 0.100
G27     256.1          32.9                9.1 +/-    2.51      15.1 +/-    2.51  0.040 / 0.070
G32     240.2          64.1               11.0 +/-    0.68      12.1 +/-    0.68  0.040 / 0.060