PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/30-03:58:00
G01     320.0          15.2               -8.1 +/-   32.61     -20.0 +/-   32.61  0.210 / 0.300
G08     259.6          14.8                9.3 +/-    2.11      23.2 +/-    2.11  0.230 / 0.300
G10     74.8           54.8                6.9 +/-    0.62       8.2 +/-    0.62  0.180 / 0.300
G11     305.5          21.8                8.0 +/-    1.88      16.8 +/-    1.88  0.150 / 0.260
G14     282.8          68.5                5.1 +/-    0.67       5.4 +/-    0.67  0.090 / 0.250
G18     307.4          37.9                5.6 +/-    1.99       8.5 +/-    1.99  0.110 / 0.270
G20     90.2           52.4               17.7 +/-    1.10      21.7 +/-    1.10  0.040 / 0.040
G27     226.3          10.8                9.6 +/-    2.17      26.4 +/-    2.17  0.030 / 0.050
G31     174.8          40.4                6.7 +/-    1.05       9.8 +/-    1.05  0.170 / 0.260
G32     5.7            68.6                5.7 +/-    0.53       6.1 +/-    0.53  0.160 / 0.330