PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-18:12:20
G08     295.9          22.6                8.2 +/-    2.14      17.0 +/-    2.14  0.070 / 0.090
G10     0.7            62.9                8.5 +/-    0.76       9.5 +/-    0.76  0.100 / 0.090
G14     228.1          44.5               10.3 +/-    1.95      13.9 +/-    1.95  0.040 / 0.020
G18     62.3           51.1                8.4 +/-    0.79      10.5 +/-    0.79  0.050 / 0.030
G24     59.3           27.4                7.3 +/-    1.78      13.5 +/-    1.78  0.110 / 0.090
G27     255.4          32.6                8.5 +/-    2.08      14.1 +/-    2.08  0.130 / 0.130
G32     241.3          64.8                9.5 +/-    0.64      10.4 +/-    0.64  0.100 / 0.140