PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/27-16:43:10
G10     254.6          29.2               10.6 +/-    3.04      18.8 +/-    3.04  0.040 / 0.040
G13     50.4           28.3                7.7 +/-    2.24      14.0 +/-    2.24  0.040 / 0.040
G15     75.5           55.1               10.2 +/-    0.73      12.2 +/-    0.73  0.050 / 0.050
G16     296.2          13.3                7.8 +/-    1.48      20.2 +/-    1.48  0.060 / 0.060
G18     278.7          60.1               11.0 +/-    1.20      12.4 +/-    1.20  0.120 / 0.280
G20     44.6           46.5                8.6 +/-    0.76      11.3 +/-    0.76  0.150 / 0.280
G21     348.6          66.4                9.6 +/-    0.66      10.4 +/-    0.66  0.110 / 0.320
G26     266.7          13.5                7.7 +/-    2.04      19.8 +/-    2.04  0.080 / 0.310
G29     163.6          39.6               12.6 +/-    0.73      18.4 +/-    0.73  0.080 / 0.190