PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/27-18:28:00
G08     292.1          23.9                8.5 +/-    1.33      17.0 +/-    1.33  0.070 / 0.090
G10     7.1            62.9                6.6 +/-    0.45       7.3 +/-    0.45  0.080 / 0.090
G14     229.0          46.2               10.9 +/-    0.65      14.4 +/-    0.65  0.070 / 0.110
G20     64.5           52.5                7.8 +/-    0.59       9.6 +/-    0.59  0.070 / 0.100
G21     145.8          38.7               10.4 +/-    1.07      15.5 +/-    1.07  0.110 / 0.110
G24     53.3           22.9                7.0 +/-    0.82      14.3 +/-    0.82  0.110 / 0.120
G27     257.7          32.1                8.7 +/-    2.17      14.6 +/-    2.17  0.050 / 0.110
G32     244.0          66.8                9.2 +/-    0.80       9.9 +/-    0.80  0.040 / 0.110