PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/21-18:57:40
G08     319.6          12.0                6.4 +/-   14.28      17.2 +/-   14.28  0.050 / 0.080
G10     312.9          56.8                6.7 +/-    1.81       7.8 +/-    1.81  0.060 / 0.080
G14     212.8          15.7                9.4 +/-    2.28      23.0 +/-    2.28  0.160 / 0.280
G15     45.5           19.3                8.3 +/-    1.56      18.5 +/-    1.56  0.250 / 0.300
G20     16.8           63.5                7.3 +/-    0.84       8.1 +/-    0.84  0.030 / 0.030
G21     116.7          68.5                9.7 +/-    1.06      10.4 +/-    1.06  0.030 / 0.040
G24     90.3           29.4                9.9 +/-    1.05      17.6 +/-    1.05  0.150 / 0.110
G27     291.2          37.3                4.0 +/-    2.06       6.1 +/-    2.06  0.170 / 0.150
G32     213.7          41.2               10.2 +/-    0.98      14.5 +/-    0.98  0.230 / 0.350