PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-03:28:10
G02     18.1           67.5                5.6 +/-    0.62       6.1 +/-    0.62  0.040 / 0.020
G05     155.3          47.4                8.7 +/-    0.98      11.3 +/-    0.98  0.030 / 0.030
G06     45.8           29.4                4.3 +/-    1.44       7.7 +/-    1.44  0.040 / 0.050
G12     264.6          79.4                6.2 +/-    1.61       6.3 +/-    1.61  0.030 / 0.080
G19     86.4           20.1                6.1 +/-    1.24      13.4 +/-    1.24  0.110 / 0.080
G24     219.4          13.9                9.6 +/-    1.31      24.6 +/-    1.31  0.060 / 0.100
G25     313.3          39.6                6.2 +/-    1.10       9.0 +/-    1.10  0.220 / 0.420
G29     295.6          16.6                7.3 +/-    3.18      17.5 +/-    3.18  0.240 / 0.220