PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-18:58:00
G08     293.7          22.9               12.6 +/-    1.50      25.9 +/-    1.50  0.110 / 0.100
G10     4.7            63.1                9.9 +/-    0.60      10.9 +/-    0.60  0.130 / 0.110
G14     229.8          46.4               12.0 +/-    2.43      15.8 +/-    2.43  0.100 / 0.090
G18     64.5           50.2               11.4 +/-    0.82      14.3 +/-    0.82  0.110 / 0.120
G21     145.1          35.7               13.0 +/-    1.22      20.3 +/-    1.22  0.090 / 0.110
G24     57.6           26.7               10.5 +/-    1.83      19.8 +/-    1.83  0.080 / 0.130
G27     253.4          31.7               10.6 +/-    2.91      17.9 +/-    2.91  0.060 / 0.080
G32     244.4          66.0               11.6 +/-    0.68      12.6 +/-    0.68  0.070 / 0.080