PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-14:42:40
G02     59.4           32.3                5.9 +/-    2.01       9.8 +/-    2.01  0.020 / 0.030
G05     61.7           63.7                6.8 +/-    0.43       7.5 +/-    0.43  0.030 / 0.030
G12     186.5          35.0               10.4 +/-    1.00      16.5 +/-    1.00  0.160 / 0.260
G13     130.6          14.2               12.1 +/-    4.33      30.6 +/-    4.33  0.140 / 0.240
G15     163.6          11.5                7.3 +/-   15.93      19.8 +/-   15.93  0.060 / 0.080
G20     207.9          57.1                8.8 +/-    0.74      10.3 +/-    0.74  0.050 / 0.080
G21     271.5          19.9                9.7 +/-    1.47      21.5 +/-    1.47  0.050 / 0.050
G25     237.1          52.5                7.2 +/-    4.07       8.8 +/-    4.07  0.050 / 0.050
G29     332.5          58.6                5.1 +/-    0.40       5.8 +/-    0.40  0.200 / 0.350