PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-17:13:10
G10     277.4          44.1                9.3 +/-    1.79      12.7 +/-    1.79  0.030 / 0.040
G13     38.5           10.9                8.1 +/-   11.82      22.2 +/-   11.82  0.040 / 0.040
G15     52.7           43.7                7.8 +/-    1.02      10.7 +/-    1.02  0.500 / 0.600
G20     316.4          63.6                9.2 +/-    0.67      10.1 +/-    0.67  0.240 / 0.350
G21     40.3           76.1                9.1 +/-    0.59       9.3 +/-    0.59  0.100 / 0.170
G24     108.6          19.5               10.3 +/-    1.15      23.0 +/-    1.15  0.110 / 0.170
G27     314.9          23.8                7.2 +/-    1.69      14.5 +/-    1.69  0.030 / 0.060
G29     167.9          21.4                9.2 +/-    1.21      19.5 +/-    1.21  0.050 / 0.040
G32     205.8          17.2               11.5 +/-    1.83      27.0 +/-    1.83  0.110 / 0.120