PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-22:42:50
G08     314.6          16.3               18.6 +/-    1.17      44.9 +/-    1.17  0.060 / 0.040
G10     316.4          56.8               21.7 +/-    1.66      25.3 +/-    1.66  0.050 / 0.030
G14     214.4          25.1               27.3 +/-    3.07      53.2 +/-    3.07  0.090 / 0.110
G15     45.7           17.3               19.7 +/-    3.11      46.4 +/-    3.11  0.090 / 0.100
G18     25.2           62.4               24.7 +/-    1.95      27.5 +/-    1.95  0.040 / 0.040
G20     80.6           9.9                21.2 +/-    2.19      59.4 +/-    2.19  0.040 / 0.030
G21     125.1          62.4               24.1 +/-    0.39      26.9 +/-    0.39  0.180 / 0.400
G24     84.6           30.2               22.2 +/-    1.23      38.7 +/-    1.23  0.130 / 0.360
G27     283.1          38.1               25.1 +/-    1.96      37.8 +/-    1.96  0.070 / 0.070
G32     218.0          41.5               27.6 +/-    1.12      39.2 +/-    1.12  0.080 / 0.050