PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/05-18:57:50
G01     321.1          11.0              -11.5 +/-   29.78     -31.5 +/-   29.78  0.050 / 0.030
G08     262.9          17.3               10.3 +/-    0.92      24.3 +/-    0.92  0.040 / 0.040
G10     66.3           56.8                9.4 +/-    1.01      11.0 +/-    1.01  0.170 / 0.310
G11     309.0          19.6                8.3 +/-    1.62      18.4 +/-    1.62  0.180 / 0.310
G14     273.3          68.1               10.2 +/-    0.73      10.9 +/-    0.73  0.320 / 0.480
G20     97.8           34.8                8.0 +/-    0.76      12.8 +/-    0.76  0.360 / 0.510
G21     154.4          10.6                9.1 +/-    9.60      25.1 +/-    9.60  0.280 / 0.290
G27     232.2          14.9               11.2 +/-    1.47      27.8 +/-    1.47  0.120 / 0.350
G31     180.1          30.3               10.0 +/-    1.37      17.4 +/-    1.37  0.170 / 0.220
G32     344.5          73.2               10.3 +/-    0.60      10.7 +/-    0.60  0.140 / 0.170