PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-23:42:50
G10     274.9          42.6               10.0 +/-    1.09      13.9 +/-    1.09  0.110 / 0.140
G13     39.1           12.7                7.5 +/-    0.91      19.6 +/-    0.91  0.080 / 0.140
G15     54.7           46.4                8.2 +/-    1.06      10.8 +/-    1.06  0.040 / 0.050
G20     276.9          38.1                7.0 +/-    1.22      10.5 +/-    1.22  0.040 / 0.040
G21     19.4           75.4                9.6 +/-    0.68       9.9 +/-    0.68  0.110 / 0.320
G24     112.8          18.3               10.9 +/-    1.21      25.0 +/-    1.21  0.120 / 0.220
G27     315.1          23.9                8.3 +/-    1.62      16.7 +/-    1.62  0.100 / 0.300
G29     168.9          25.1               10.6 +/-    1.71      20.7 +/-    1.71  0.130 / 0.270
G32     205.0          17.1               16.3 +/-    4.69      38.4 +/-    4.69  0.060 / 0.150