PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-18:57:50
G08     309.5          19.0                9.1 +/-    0.93      20.4 +/-    0.93  0.070 / 0.060
G10     330.0          59.6                8.6 +/-    0.55       9.8 +/-    0.55  0.080 / 0.080
G14     218.1          31.1                9.3 +/-    3.07      15.9 +/-    3.07  0.050 / 0.040
G15     46.8           9.9                 9.2 +/-    4.20      25.6 +/-    4.20  0.050 / 0.050
G18     40.5           58.6                9.5 +/-    0.83      10.9 +/-    0.83  0.050 / 0.060
G21     133.9          52.6               11.6 +/-    0.42      14.2 +/-    0.42  0.060 / 0.060
G24     75.7           30.6                9.9 +/-    1.08      17.1 +/-    1.08  0.110 / 0.070
G27     273.5          37.6               10.0 +/-    2.33      15.2 +/-    2.33  0.080 / 0.060
G32     223.3          50.4               10.7 +/-    1.76      13.4 +/-    1.76  0.100 / 0.170