PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-16:28:00
G10     273.5          41.3                6.7 +/-    1.54       9.5 +/-    1.54  0.160 / 0.120
G13     39.9           14.6                6.3 +/-    2.64      15.7 +/-    2.64  0.090 / 0.090
G15     53.0           42.6                6.1 +/-    1.02       8.5 +/-    1.02  0.100 / 0.170
G18     319.3          66.8                5.1 +/-    0.72       5.6 +/-    0.72  0.120 / 0.140
G20     57.6           32.6                4.6 +/-    0.98       7.6 +/-    0.98  0.050 / 0.110
G21     43.3           75.2                6.1 +/-    0.73       6.3 +/-    0.73  0.050 / 0.120
G24     116.3          17.5               10.7 +/-    1.48      25.1 +/-    1.48  0.290 / 0.410
G27     314.6          24.6                5.9 +/-    1.94      11.7 +/-    1.94  0.280 / 0.400
G29     166.6          20.9                9.3 +/-    1.61      20.0 +/-    1.61  0.030 / 0.020
G32     205.7          13.9                9.4 +/-    2.62      24.0 +/-    2.62  0.030 / 0.030