PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-04:57:50
G08     266.1          17.5               10.0 +/-    1.31      23.5 +/-    1.31  0.210 / 0.280
G10     64.1           57.7                5.9 +/-    0.59       6.9 +/-    0.59  0.210 / 0.320
G11     310.5          18.1                4.4 +/-    8.01      10.2 +/-    8.01  0.180 / 0.490
G14     266.6          64.8                9.8 +/-    0.78      10.7 +/-    0.78  0.160 / 0.360
G18     311.7          32.8                5.4 +/-    0.77       9.0 +/-    0.77  0.110 / 0.250
G20     90.1           46.7               12.1 +/-    0.80      15.9 +/-    0.80  0.110 / 0.190
G21     155.2          14.7                5.0 +/-    4.48      12.6 +/-    4.48  0.050 / 0.050
G27     230.7          14.9                9.9 +/-    3.16      24.8 +/-    3.16  0.040 / 0.050
G31     176.3          33.8                8.3 +/-    1.87      13.5 +/-    1.87  0.130 / 0.210
G32     350.7          72.8                6.8 +/-    0.86       7.0 +/-    0.86  0.150 / 0.180