PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-18:42:40
G08     289.3          22.9                8.2 +/-    1.10      16.7 +/-    1.10  0.090 / 0.120
G10     14.5           63.2                7.7 +/-    0.70       8.5 +/-    0.70  0.080 / 0.120
G14     233.9          50.1               12.4 +/-    1.25      15.6 +/-    1.25  0.050 / 0.130
G18     69.9           47.8                6.6 +/-    0.50       8.5 +/-    0.50  0.050 / 0.140
G21     147.0          31.1               10.2 +/-    0.87      17.4 +/-    0.87  0.060 / 0.100
G24     53.6           24.7                6.7 +/-    0.46      13.3 +/-    0.46  0.060 / 0.110
G27     248.9          29.3                7.8 +/-    1.65      13.8 +/-    1.65  0.040 / 0.030
G32     253.9          69.6                9.6 +/-    0.47      10.2 +/-    0.47  0.040 / 0.040