PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-07:28:10
G05     51.7           10.1                3.3 +/-    4.16       9.3 +/-    4.16  0.100 / 0.250
G10     240.6          17.0                5.8 +/-    1.55      13.8 +/-    1.55  0.090 / 0.280
G13     67.9           35.7                6.1 +/-    1.05       9.6 +/-    1.05  0.240 / 0.230
G15     110.7          55.7                8.7 +/-    0.49      10.3 +/-    0.49  0.310 / 0.240
G16     308.3          14.2                3.5 +/-    3.30       9.0 +/-    3.30  0.040 / 0.050
G20     344.3          75.3                5.8 +/-    0.32       6.0 +/-    0.32  0.050 / 0.060
G21     320.1          51.9                4.3 +/-    0.52       5.4 +/-    0.52  0.050 / 0.040
G26     279.7          19.7                4.4 +/-    1.91       9.7 +/-    1.91  0.040 / 0.040
G29     159.9          64.4                7.6 +/-    0.45       8.3 +/-    0.45  0.030 / 0.040