PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-18:58:10
G10     256.3          30.4               15.0 +/-   37.08      26.0 +/-   37.08  0.210 / 0.350
G13     49.1           27.3                8.3 +/-   38.00      15.4 +/-   38.00  0.130 / 0.310
G15     73.2           54.7                7.5 +/-   39.73       9.0 +/-   39.73  0.040 / 0.080
G16     294.7          13.1                7.9 +/-   39.15      20.7 +/-   39.15  0.050 / 0.070
G18     281.0          60.5                7.6 +/-   38.28       8.6 +/-   38.28  0.120 / 0.310
G20     46.6           43.9                8.8 +/-   38.62      12.0 +/-   38.62  0.120 / 0.340
G21     348.1          66.7                6.0 +/-   38.74       6.5 +/-   38.74  0.060 / 0.060
G26     266.6          12.6               14.9 +/-   18.55      39.3 +/-   18.55  0.050 / 0.060
G27     321.6          11.7                0.2 +/-   35.23       0.6 +/-   35.23  0.110 / 0.330
G29     163.6          36.7               18.6 +/-    2.33      28.6 +/-    2.33  0.090 / 0.300