PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/17-15:43:10
G10     264.1          35.8                9.2 +/-    0.97      14.4 +/-    0.97  0.090 / 0.120
G13     43.7           21.4                5.8 +/-    1.18      12.3 +/-    1.18  0.090 / 0.140
G15     61.0           49.3                9.9 +/-    0.34      12.5 +/-    0.34  0.040 / 0.060
G16     285.7          12.0                8.4 +/-    1.87      22.3 +/-    1.87  0.040 / 0.050
G18     298.9          64.7                8.8 +/-    0.76       9.6 +/-    0.76  0.050 / 0.080
G20     51.1           39.4                6.8 +/-    0.59      10.0 +/-    0.59  0.050 / 0.080
G21     13.1           72.4                9.1 +/-    0.35       9.5 +/-    0.35  0.090 / 0.250
G24     123.5          12.4                3.8 +/-   35.37      10.0 +/-   35.37  0.090 / 0.380
G27     319.1          17.9                5.5 +/-    1.20      12.8 +/-    1.20  0.080 / 0.270
G29     165.9          30.0               13.0 +/-    1.21      22.7 +/-    1.21  0.090 / 0.330